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8h2u

X-ray Structure of photosystem I-LHCI super complex from Chlamydomonas reinhardtii.

Method: X-RAY DIFFRACTION Dmax: 210.3 Å Quality: GOOD
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Photosystem I P700 chlorophyll a apoprotein A1

OrganismNot specified

UniProt P12154

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain A； UniProt 1–751 Not recorded Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain A 11–751（741 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain A 11–751（741 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain A 12–751（740 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain A 1–751（751 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain A 1–751（751 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain A 11–751（741 aa）
Chain a 11–751（741 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain A 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain A 1–751（751 aa）
Chain A2 1–751（751 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain A 10–751（742 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain A 10–751（742 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAA_CHLRE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–751； UniProt 1–751

Photosystem I P700 chlorophyll a apoprotein A2

OrganismNot specified

UniProt P09144

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain B； UniProt 1–735 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain B 2–734（733 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain B 2–734（733 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain B 2–735（734 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain B 1–735（735 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain B 1–735（735 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain B 2–734（733 aa）
Chain b 2–734（733 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain B 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain B 1–735（735 aa）
Chain B2 1–735（735 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain B 3–735（733 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain B 3–735（733 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAB_CHLRE
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–735； UniProt 1–735

Photosystem I iron-sulfur center

OrganismNot specified

UniProt Q00914

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain C； UniProt 1–81 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain C 2–81（80 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain C 2–81（80 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain C 2–81（80 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain C 1–81（81 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain C 1–81（81 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain C 2–81（80 aa）
Chain c 2–81（80 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain C 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain C 1–81（81 aa）
Chain C2 1–81（81 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain C 2–81（80 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain C 2–81（80 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAC_CHLRE
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–81； UniProt 1–81

Photosystem I reaction center subunit II, chloroplastic

OrganismNot specified

UniProt Q39615

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain D； UniProt 1–196 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain D 36–196（161 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain D 36–196（161 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain D 53–196（144 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain D 53–196（144 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain D 53–196（144 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain D 1–196（196 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain D 1–196（196 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain D 53–196（144 aa）
Chain d 53–196（144 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain D 1–196（196 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain D 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain D 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain D 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain D 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain D 1–196（196 aa）
Chain D2 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain D 53–196（144 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain D 53–196（144 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAD_CHLRE
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D； PDBConstruct 1–196； UniProt 1–196

Photosystem I reaction center subunit IV, chloroplastic

OrganismNot specified

UniProt P12352

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain E； UniProt 1–97 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain E 25–97（73 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain E 25–97（73 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain E 34–96（63 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain E 34–96（63 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain E 34–96（63 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain E 1–97（97 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain E 1–97（97 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain E 34–96（63 aa）
Chain e 34–96（63 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain E 1–97（97 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain E 1–97（97 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain E 1–97（97 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain E 1–97（97 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain E 1–97（97 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain E 1–97（97 aa）
Chain E2 1–97（97 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain E 34–97（64 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain E 34–97（64 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAE_CHLRE
Isoform —
PDB entities 5
Chains and sequence ranges Author chain E； PDBConstruct 1–97； UniProt 1–97

Photosystem I reaction center subunit III, chloroplastic

OrganismNot specified

UniProt P12356

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain F； UniProt 1–227 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain F 63–227（165 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain F 63–227（165 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain F 63–227（165 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain F 63–227（165 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain F 63–227（165 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain F 1–227（227 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain F 1–227（227 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain F 63–227（165 aa）
Chain f 63–227（165 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain F 1–227（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain F 1–227（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain F 1–227（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain F 1–227（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain F 1–227（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain F 1–227（227 aa）
Chain F2 1–227（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain F 63–227（165 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain F 63–227（165 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAF_CHLRE
Isoform —
PDB entities 6
Chains and sequence ranges Author chain F； PDBConstruct 1–227； UniProt 1–227

Photosystem I reaction center subunit V, chloroplastic

OrganismNot specified

UniProt P14224

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain G； UniProt 1–126 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain G 31–124（94 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain G 31–124（94 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain G 32–122（91 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain G 32–122（91 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain G 32–122（91 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain G 1–126（126 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain G 1–126（126 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain G 32–122（91 aa）
Chain g 32–122（91 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain G 1–126（126 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain G 1–126（126 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain G 1–126（126 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain G 1–126（126 aa）
Chain G2 1–126（126 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain G 32–126（95 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å

13 other PDB entries and 13 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAG_CHLRE
Isoform —
PDB entities 7
Chains and sequence ranges Author chain G； PDBConstruct 1–126； UniProt 1–126

Photosystem I reaction center subunit VI, chloroplastic

OrganismNot specified

UniProt P13352

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain H； UniProt 1–130 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain H 31–130（100 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain H 1–130（130 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain H 1–130（130 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å

3 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAH_CHLRE
Isoform —
PDB entities 8
Chains and sequence ranges Author chain H； PDBConstruct 1–130； UniProt 1–130

Photosystem I reaction center subunit VIII

OrganismNot specified

UniProt A8IFG7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain I； UniProt 1–106 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain I 1–106（106 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain I 1–106（106 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain I 68–104（37 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain I 68–104（37 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain I 68–104（37 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain I 1–106（106 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain I 1–106（106 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain I 68–104（37 aa）
Chain i 68–104（37 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain I 1–106（106 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain I 1–106（106 aa）
Chain I2 1–106（106 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain I 1–106（106 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain I 1–106（106 aa）
Chain I2 1–106（106 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain I 68–104（37 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain I 68–104（37 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

14 other PDB entries and 14 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A8IFG7_CHLRE
Isoform —
PDB entities 9
Chains and sequence ranges Author chain I； PDBConstruct 1–106； UniProt 1–106

Photosystem I reaction center subunit IX

OrganismNot specified

UniProt P59777

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain J； UniProt 1–41 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain J 1–41（41 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain J 1–41（41 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain J 1–39（39 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain J 1–39（39 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain J 1–41（41 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain J 1–41（41 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain J 1–41（41 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain J 1–39（39 aa）
Chain j 1–39（39 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain J 1–41（41 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain J 1–41（41 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain J 1–41（41 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain J 1–40（40 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain J 1–40（40 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain J 1–40（40 aa）
Chain J2 1–40（40 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain J 1–40（40 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain J 1–40（40 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAJ_CHLRE
Isoform —
PDB entities 10
Chains and sequence ranges Author chain J； PDBConstruct 1–41； UniProt 1–41

Photosystem I reaction center subunit psaK, chloroplastic

OrganismNot specified

UniProt P14225

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain K； UniProt 1–113 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain K 27–113（87 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain K 27–113（87 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain K 29–112（84 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain K 29–112（84 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain K 29–113（85 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain K 1–113（113 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain K 1–113（113 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain K 29–112（84 aa）
Chain k 29–112（84 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain K 1–113（113 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain K 1–113（113 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain K 1–113（113 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain K 1–113（113 aa）
Chain K2 1–113（113 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain K 28–113（86 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å

13 other PDB entries and 13 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PSAK_CHLRE
Isoform —
PDB entities 11
Chains and sequence ranges Author chain K； PDBConstruct 1–113； UniProt 1–113

PSI subunit V

OrganismNot specified

UniProt A8IL32

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain L； UniProt 1–196 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain L 41–196（156 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain L 41–196（156 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain L 53–190（138 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain L 53–190（138 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain L 38–196（159 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain L 1–196（196 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain L 1–196（196 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain L 53–190（138 aa）
Chain l 53–190（138 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain L 1–196（196 aa）
Chain L2 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain L 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain L 1–196（196 aa）
Chain L2 1–196（196 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE7 Structure of Cytochrome C6 bound Photosystem I from Chlamydomonas reinhardtii at 2.07 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain L 53–190（138 aa）
Not recorded CLA CHLOROPHYLL A × 91 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 BCR BETA-CAROTENE × 15 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 5 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 2 HEC HEME C × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.06 Å

12 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A8IL32_CHLRE
Isoform —
PDB entities 12
Chains and sequence ranges Author chain L； PDBConstruct 1–196； UniProt 1–196

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q05093

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain 0； UniProt 1–228 Chain 1； UniProt 1–228 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 1 1–228（228 aa）
Chain a 1–228（228 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 1 1–228（228 aa）
Chain a 1–228（228 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 1 1–228（228 aa）
Chain Z 1–228（228 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain Z 1–228（228 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain Z 1–228（228 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain 1 1–228（228 aa）
Chain Z 1–228（228 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain 1 1–228（228 aa）
Chain Z 1–228（228 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 1 1–228（228 aa）
Chain 12 1–228（228 aa）
Chain Z 1–228（228 aa）
Chain Z2 1–228（228 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å

8 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q05093_CHLRE
Isoform —
PDB entities 13
Chains and sequence ranges Author chain 0； PDBConstruct 1–228； UniProt 1–228 Author chain 1； PDBConstruct 1–228； UniProt 1–228

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q75VY7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain 8； UniProt 1–243 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 8 27–243（217 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 8 27–243（217 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 8 27–243（217 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 8 27–243（217 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 8 27–243（217 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 8 1–243（243 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 8 1–243（243 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 8 27–243（217 aa）
Chain s 27–243（217 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 8 1–243（243 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 8 1–243（243 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain 8 1–243（243 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain 8 1–243（243 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain 8 1–243（243 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 8 1–243（243 aa）
Chain 82 1–243（243 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain 8 27–243（217 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å

15 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q75VY7_CHLRE
Isoform —
PDB entities 14
Chains and sequence ranges Author chain 8； PDBConstruct 1–243； UniProt 1–243

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q75VY4

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain 7； UniProt 1–241 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 7 29–241（213 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q75VY4_CHLRE
Isoform —
PDB entities 15
Chains and sequence ranges Author chain 7； PDBConstruct 1–241； UniProt 1–241

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q75VZ0

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain 4； UniProt 1–264 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 4 29–264（236 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 4 29–264（236 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 4 55–264（210 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 4 55–264（210 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 4 58–262（205 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 4 1–264（264 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 4 1–264（264 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 4 55–264（210 aa）
Chain t 55–264（210 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 4 1–264（264 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 4 1–264（264 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain 4 1–264（264 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain 4 1–264（264 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain 4 1–264（264 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 4 1–264（264 aa）
Chain 42 1–264（264 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain 4 53–264（212 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å

15 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q75VZ0_CHLRE
Isoform —
PDB entities 17
Chains and sequence ranges Author chain 4； PDBConstruct 1–264； UniProt 1–264

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q75VY6

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain 6； UniProt 1–257 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY8） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 6 26–257（232 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 6 26–257（232 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 6 29–257（229 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 6 29–257（229 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 6 28–257（230 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 6 1–257（257 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 6 1–257（257 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 6 29–257（229 aa）
Chain v 29–257（229 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 6 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 6 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain 6 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain 6 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain 6 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 6 1–257（257 aa）
Chain 62 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain 6 28–257（230 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å

15 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q75VY6_CHLRE
Isoform —
PDB entities 18
Chains and sequence ranges Author chain 6； PDBConstruct 1–257； UniProt 1–257

Chlorophyll a-b binding protein, chloroplastic

OrganismNot specified

UniProt Q75VY8

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 20 PDB declaration: eicosameric（20） Consistent with protein copy count Chain 5； UniProt 1–257 Not recorded Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P12154） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P09144） Photosystem I iron-sulfur center × 1 （Q00914） Photosystem I reaction center subunit II, chloroplastic × 1 （Q39615） Photosystem I reaction center subunit IV, chloroplastic × 1 （P12352） Photosystem I reaction center subunit III, chloroplastic × 1 （P12356） Photosystem I reaction center subunit V, chloroplastic × 1 （P14224） Photosystem I reaction center subunit VI, chloroplastic × 1 （P13352） Photosystem I reaction center subunit VIII × 1 （A8IFG7） Photosystem I reaction center subunit IX × 1 （P59777） Photosystem I reaction center subunit psaK, chloroplastic × 1 （P14225） PSI subunit V × 1 （A8IL32） Chlorophyll a-b binding protein, chloroplastic × 2 （Q05093） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY7） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY4） Lhca3 × 1 Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VZ0） Chlorophyll a-b binding protein, chloroplastic × 1 （Q75VY6） CLA CHLOROPHYLL A × 185 SF4 IRON/SULFUR CLUSTER × 3 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 7 BCR BETA-CAROTENE × 27 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 LMT DODECYL-BETA-D-MALTOSIDE × 2 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 7 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 12 CHL CHLOROPHYLL B × 26 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 5 X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；277 K；50 mM Tris-HCl (pH 7.0), 50 mM Li2SO4 and 4.5-7.0 % (w/v) polyethylene glycol (PEG) 6,000 Resolution 3.40 Å R-free 0.359

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 8H2U Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
6JO5 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 5 29–257（229 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 218 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 CHL CHLOROPHYLL B × 20 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6JO6 Structure of the green algal photosystem I supercomplex with light-harvesting complex I Deposited 2019-03-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 5 29–257（229 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 BCR BETA-CAROTENE × 32 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 1 CHL CHLOROPHYLL B × 18 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7BGI Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-07 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 21 PDB declaration: 21-meric
Chain 5 31–257（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 217 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 8 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 2 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 T7X Phosphatidylinositol × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 CHL CHLOROPHYLL B × 25 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 2 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 5 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.54 Å
7BLX Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-01-19 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: nonadecameric
Chain 5 31–257（227 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 197 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 31 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NKP (2R)-2-hydroxy-3-(phosphonooxy)propyl (9E)-octadec-9-enoate × 3 LMT DODECYL-BETA-D-MALTOSIDE × 7 OCA OCTANOIC ACID (CAPRYLIC ACID) × 1 DAO LAURIC ACID × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 2 DGA DIACYL GLYCEROL × 1 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 1 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 SPH SPHINGOSINE × 3 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 17 CHL CHLOROPHYLL B × 20 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 QTB (3~{E},5~{E},7~{E})-6-methyl-8-[(6~{R})-2,2,6-trimethylcyclohexyl]octa-3,5,7-trien-2-one × 1 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 PLM PALMITIC ACID × 1 LPX (2S)-3-{[(R)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-hydroxypropyl hexadecanoate × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
7D0J Photosystem I-LHCI-LHCII of Chlamydomonas reinhardtii Deposited 2020-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 5 32–256（225 aa）
Not recorded CLA CHLOROPHYLL A × 276 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 20 BCR BETA-CAROTENE × 37 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 CHL CHLOROPHYLL B × 56 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 34 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 6 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.42 Å
7DZ7 State transition supercomplex PSI-LHCI-LHCII from double phosphatase mutant pph1;pbcp of green alga Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 5 1–257（257 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
7DZ8 State transition supercomplex PSI-LHCI-LHCII from the LhcbM1 lacking mutant of Chlamydomonas reinhardtii Deposited 2021-01-23 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 29 PDB declaration: 29-meric
Chain 5 1–257（257 aa）
Not recorded CLA CHLOROPHYLL A × 298 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 27 BCR BETA-CAROTENE × 40 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 7 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 11 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 22 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 8 CHL CHLOROPHYLL B × 36 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
7O01 Dimeric Photosystem I of a temperature sensitive mutant Chlamydomonas reinhardtii Deposited 2021-03-25 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 5 31–257（227 aa）
Chain u 31–257（227 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.10 Å
7R3K Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex Deposited 2022-02-07 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 18 PDB declaration: octadecameric
Chain 5 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 186 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 BCR BETA-CAROTENE × 28 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 12 LMT DODECYL-BETA-D-MALTOSIDE × 16 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CA CALCIUM ION × 1 RRX (3R)-beta,beta-caroten-3-ol × 3 C7Z (1~{S})-3,5,5-trimethyl-4-[(1~{E},3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-[(4~{S})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-en-1-ol × 3 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 DAO LAURIC ACID × 1 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 CHL CHLOROPHYLL B × 28 SPH SPHINGOSINE × 3 3PH 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE × 4 DGA DIACYL GLYCEROL × 1 PLM PALMITIC ACID × 1 SQD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 1 ERG ERGOSTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 3 seconds before plunging
Resolution 2.52 Å
7WYI Native Photosystem I of Chlamydomonas reinhardtii Deposited 2022-02-16 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric
Chain 5 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 155 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 4 seconds using Whatman #1 before plunge freezing.
Resolution 3.90 Å
7WZN PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin Deposited 2022-02-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric
Chain 5 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 188 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 CHL CHLOROPHYLL B × 16 FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 6.5
cryo-EM vitrification conditions Cryogen ETHANE；2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing.
Resolution 4.90 Å
7ZQ9 Dimeric PSI of Chlamydomonas reinhardtii at 2.74 A resolution (symmetry expanded) Deposited 2022-04-29 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain 5 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 226 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 16 BCR BETA-CAROTENE × 36 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 34 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 17 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 20 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 32 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 Å
7ZQC Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution Deposited 2022-04-29 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: eicosameric
Chain 5 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 1 CLA CHLOROPHYLL A × 198 PQN PHYLLOQUINONE × 2 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 15 BCR BETA-CAROTENE × 27 SF4 IRON/SULFUR CLUSTER × 3 LMU DODECYL-ALPHA-D-MALTOSIDE × 32 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 15 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 18 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 CHL CHLOROPHYLL B × 30 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.31 Å
7ZQD Dimeric PSI of Chlamydomonas reinhardtii at 2.97 A resolution Deposited 2022-04-29 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 40 PDB declaration: 40-meric
Chain 5 1–257（257 aa）
Chain 52 1–257（257 aa）
Not recorded CL0 CHLOROPHYLL A ISOMER × 2 CLA CHLOROPHYLL A × 396 PQN PHYLLOQUINONE × 4 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 30 BCR BETA-CAROTENE × 56 SF4 IRON/SULFUR CLUSTER × 6 LMU DODECYL-ALPHA-D-MALTOSIDE × 66 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 30 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 36 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 2 CHL CHLOROPHYLL B × 60 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9SE6 Structure of Photosystem I from Chlamydomonas reinhardtii at 1.83 A resolution Deposited 2025-08-15 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric
Chain 5 31–257（227 aa）
Not recorded CLA CHLOROPHYLL A × 188 CHL CHLOROPHYLL B × 28 BCR BETA-CAROTENE × 27 LUT (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 16 LMG 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 12 LMU DODECYL-ALPHA-D-MALTOSIDE × 27 XAT (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL × 7 LHG 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 14 NEX (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL × 2 CL0 CHLOROPHYLL A ISOMER × 1 PQN PHYLLOQUINONE × 2 SF4 IRON/SULFUR CLUSTER × 3 DGD DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；5mM HEPES, pH 7.5, 0.02% alphaDDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.83 Å

15 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q75VY8_CHLRE
Isoform —
PDB entities 19
Chains and sequence ranges Author chain 5； PDBConstruct 1–257； UniProt 1–257

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8h2u

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8h2u
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8h2u
Deposition date deposition_date2022-10-07
Structure title titleX-ray Structure of photosystem I-LHCI super complex from Chlamydomonas reinhardtii.
Keywords keywordsPhotosystem I, light-harvesting chlorophyll protein complex I, PHOTOSYNTHESIS; PHOTOSYNTHESIS
Experimental Method methodX-RAY DIFFRACTION
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier60.16 Å
Radius of gyration Rg (electron density) rg_electron60.18 Å
Forward intensity I(0) i03446360000.00
Molecular weight molecular_weight589030.0 kDa
Excluded volume excluded_volume767840 ų
Envelope volume envelope_volume1064000 ų
Hydration-shell volume shell_volume142000 ų
Envelope diameter envelope_diameter193.5 Å
Shell Rg shell_rg65.01 Å
Envelope Rg envelope_rg59.51 Å
Shape Rg shape_rg60.18 Å
Total Rg total_rg60.25 Å
Total atoms total_atoms42070
Residues n_residues3881
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax210.3 Å
Rg (real space) rg_real60.00 Å
Rg uncertainty (real space) rg_real_error1.65 Å
I(0) (real space) i0_real3.4460e+09
I(0) uncertainty (real space) i0_real_error6.1310e+07
Rg (reciprocal space) rg_reciprocal60.27 Å
I(0) (reciprocal space) i0_reciprocal3448000000.0000
Solution quality estimate total_estimate0.8775
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary64.7 Å
Skewness Skewness skewness0.214
Kurtosis Kurtosis kurtosis-0.607
Angular range angular_range— – 0.1300 Å−1
Current regularization parameter α current_alpha0.0010
Highest regularization parameter α highest_alpha716000000.0000
Real-space data points n_real_points27
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.811; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.976; Smooth: 0.993
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (30)

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8. Citations (1)

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9. Files and Curves (10)