5zf0

X-ray Structure of the Electron Transfer Complex between Ferredoxin and Photosystem I

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Photosystem I P700 chlorophyll a apoprotein A1

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAA_THEEB
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A1； PDBConstruct 1–755； UniProt 1–755 Author chain A2； PDBConstruct 1–755； UniProt 1–755 Author chain A3； PDBConstruct 1–755； UniProt 1–755 Author chain A4； PDBConstruct 1–755； UniProt 1–755 Author chain A5； PDBConstruct 1–755； UniProt 1–755 Author chain A6； PDBConstruct 1–755； UniProt 1–755

Photosystem I P700 chlorophyll a apoprotein A2

OrganismNot specified

UniProt P0A407

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAB_THEEB
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B1； PDBConstruct 1–740； UniProt 2–741 Author chain B2； PDBConstruct 1–740； UniProt 2–741 Author chain B3； PDBConstruct 1–740； UniProt 2–741 Author chain B4； PDBConstruct 1–740； UniProt 2–741 Author chain B5； PDBConstruct 1–740； UniProt 2–741 Author chain B6； PDBConstruct 1–740； UniProt 2–741

Photosystem I iron-sulfur center

OrganismNot specified

UniProt P0A415

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAC_THEEB
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C1； PDBConstruct 1–80； UniProt 2–81 Author chain C2； PDBConstruct 1–80； UniProt 2–81 Author chain C3； PDBConstruct 1–80； UniProt 2–81 Author chain C4； PDBConstruct 1–80； UniProt 2–81 Author chain C5； PDBConstruct 1–80； UniProt 2–81 Author chain C6； PDBConstruct 1–80； UniProt 2–81

Photosystem I reaction center subunit II

OrganismNot specified

UniProt P0A420

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAD_THEEB
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D1； PDBConstruct 1–138； UniProt 2–139 Author chain D2； PDBConstruct 1–138； UniProt 2–139 Author chain D3； PDBConstruct 1–138； UniProt 2–139 Author chain D4； PDBConstruct 1–138； UniProt 2–139 Author chain D5； PDBConstruct 1–138； UniProt 2–139 Author chain D6； PDBConstruct 1–138； UniProt 2–139

Photosystem I reaction center subunit IV

OrganismNot specified

UniProt P0A423

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAE_THEEB
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E1； PDBConstruct 1–75； UniProt 2–76 Author chain E2； PDBConstruct 1–75； UniProt 2–76 Author chain E3； PDBConstruct 1–75； UniProt 2–76 Author chain E4； PDBConstruct 1–75； UniProt 2–76 Author chain E5； PDBConstruct 1–75； UniProt 2–76 Author chain E6； PDBConstruct 1–75； UniProt 2–76

Photosystem I reaction center subunit III

OrganismNot specified

UniProt P0A401

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAF_THEEB
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F1； PDBConstruct 1–164； UniProt 1–164 Author chain F2； PDBConstruct 1–164； UniProt 1–164 Author chain F3； PDBConstruct 1–164； UniProt 1–164 Author chain F4； PDBConstruct 1–164； UniProt 1–164 Author chain F5； PDBConstruct 1–164； UniProt 1–164 Author chain F6； PDBConstruct 1–164； UniProt 1–164

Photosystem I reaction center subunit VIII

OrganismNot specified

UniProt P0A427

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAI_THEEB
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain I1； PDBConstruct 1–38； UniProt 1–38 Author chain I2； PDBConstruct 1–38； UniProt 1–38 Author chain I3； PDBConstruct 1–38； UniProt 1–38 Author chain I4； PDBConstruct 1–38； UniProt 1–38 Author chain I5； PDBConstruct 1–38； UniProt 1–38 Author chain I6； PDBConstruct 1–38； UniProt 1–38

Photosystem I reaction center subunit IX

OrganismNot specified

UniProt P0A429

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAJ_THEEB
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain J1； PDBConstruct 1–41； UniProt 1–41 Author chain J2； PDBConstruct 1–41； UniProt 1–41 Author chain J3； PDBConstruct 1–41； UniProt 1–41 Author chain J4； PDBConstruct 1–41； UniProt 1–41 Author chain J5； PDBConstruct 1–41； UniProt 1–41 Author chain J6； PDBConstruct 1–41； UniProt 1–41

Photosystem I reaction center subunit PsaK

OrganismNot specified

UniProt P0A425

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAK_THEEB
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain K1； PDBConstruct 1–83； UniProt 1–83 Author chain K2； PDBConstruct 1–83； UniProt 1–83 Author chain K3； PDBConstruct 1–83； UniProt 1–83 Author chain K4； PDBConstruct 1–83； UniProt 1–83 Author chain K5； PDBConstruct 1–83； UniProt 1–83 Author chain K6； PDBConstruct 1–83； UniProt 1–83

Photosystem I reaction center subunit XI

OrganismNot specified

UniProt Q8DGB4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAL_THEEB
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain L1； PDBConstruct 1–154； UniProt 2–155 Author chain L2； PDBConstruct 1–154； UniProt 2–155 Author chain L3； PDBConstruct 1–154； UniProt 2–155 Author chain L4； PDBConstruct 1–154； UniProt 2–155 Author chain L5； PDBConstruct 1–154； UniProt 2–155 Author chain L6； PDBConstruct 1–154； UniProt 2–155

Photosystem I reaction center subunit XII

OrganismNot specified

UniProt P0A403

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） PsaX × 3 Ferredoxin-1 × 3 （P0A3C9） CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAM_THEEB
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain M1； PDBConstruct 1–31； UniProt 1–31 Author chain M2； PDBConstruct 1–31； UniProt 1–31 Author chain M3； PDBConstruct 1–31； UniProt 1–31 Author chain M4； PDBConstruct 1–31； UniProt 1–31 Author chain M5； PDBConstruct 1–31； UniProt 1–31 Author chain M6； PDBConstruct 1–31； UniProt 1–31

Ferredoxin-1

Thermosynechococcus elongatus BP-1

UniProt P0A3C9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 39	Photosystem I P700 chlorophyll a apoprotein A1 × 3 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 3 （P0A407） Photosystem I iron-sulfur center × 3 （P0A415） Photosystem I reaction center subunit II × 3 （P0A420） Photosystem I reaction center subunit IV × 3 （P0A423） Photosystem I reaction center subunit III × 3 （P0A401） Photosystem I reaction center subunit VIII × 3 （P0A427） Photosystem I reaction center subunit IX × 3 （P0A429） Photosystem I reaction center subunit PsaK × 3 （P0A425） Photosystem I reaction center subunit XI × 3 （Q8DGB4） Photosystem I reaction center subunit XII × 3 （P0A403） PsaX × 3 CHLOROPHYLL A × 288 PHYLLOQUINONE × 6 BETA-CAROTENE × 66 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 9 IRON/SULFUR CLUSTER × 9 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 3 CALCIUM ION × 3 FE2/S2 (INORGANIC) CLUSTER × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FER_THEEB
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain P1； PDBConstruct 1–97； UniProt 2–98 Author chain P2； PDBConstruct 1–97； UniProt 2–98 Author chain P3； PDBConstruct 1–97； UniProt 2–98 Author chain P4； PDBConstruct 1–97； UniProt 2–98 Author chain P5； PDBConstruct 1–97； UniProt 2–98 Author chain P6； PDBConstruct 1–97； UniProt 2–98

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	5zf0
Deposition date deposition_date	2018-03-01
Structure title title	X-ray Structure of the Electron Transfer Complex between Ferredoxin and Photosystem I
Keywords keywords	Photosystem I, Ferredoxin, PHOTOSYNTHESIS-ELECTRON TRANSPORT complex; PHOTOSYNTHESIS/ELECTRON TRANSPORT
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

5zf0__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

5zf0__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5zf0__assembly_2__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	69.93 Å
Rg (electron density)	68.94 Å
Total Rg	68.89 Å
Atom count	74247
Residues	7020
Excluded volume	1381800 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5zf0__assembly_1__model_1`	39-meric （39）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`5zf0__assembly_2__model_1`	39-meric （39）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (21)

Entity 1 Entity 1 polymer

Description description	Photosystem I P700 chlorophyll a apoprotein A1
Molecular weight formula_weight	83267.8 kDa
EC 编号 ec_number	1.97.1.12
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A1,A2,A3,A4,A6,A5
Atom count atom_count	148494

MTISPPEREPKVRVVVDNDPVPTSFEKWAKPGHFDRTLARGPQTTTWIWNLHALAHDFDTHTSDLEDISRKIFSAHFGHLAVVFIWLSGMYFHGAKFSNYEAWLADPTGIKPSAQVVWPIVGQGILNGDVGGGFHGIQITSGLFQLWRASGITNEFQLYCTAIGGLVMAGLMLFAGWFHYHKRAPKLEWFQNVESMLNHHLAGLLGLGSLAWAGHQIHVSLPINKLLDAGVAAKDIPLPHEFILNPSLMAELYPKVDWGFFSGVIPFFTFNWAAYSDFLTFNGGLNPVTGGLWLSDTAHHHLAIAVLFIIAGHMYRTNWGIGHSLKEILEAHKGPFTGAGHKGLYEVLTTSWHAQLAINLAMMGSLSIIVAQHMYAMPPYPYLATDYPTQLSLFTHHMWIGGFLVVGGAAHGAIFMVRDYDPAMNQNNVLDRVLRHRDAIISHLNWVCIFLGFHSFGLYVHNDTMRAFGRPQDMFSDTGIQLQPVFAQWVQNLHTLAPGGTAPNAAATASVAFGGDVVAVGGKVAMMPIVLGTADFMVHHIHAFTIHVTVLILLKGVLFARSSRLIPDKANLGFRFPCDGPGRGGTCQVSGWDHVFLGLFWMYNCISVVIFHFSWKMQSDVWGTVAPDGTVSHITGGNFAQSAITINGWLRDFLWAQASQVIGSYGSALSAYGLLFLGAHFIWAFSLMFLFSGRGYWQELIESIVWAHNKLKVAPAIQPRALSIIQGRAVGVAHYLLGGIATTWAFFLARIISVG

Entity 2 Entity 2 polymer

Description description	Photosystem I P700 chlorophyll a apoprotein A2
Molecular weight formula_weight	82992.5 kDa
EC 编号 ec_number	1.97.1.12
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B1,B2,B3,B4,B6,B5

ATKFPKFSQDLAQDPTTRRIWYAIAMAHDFESHDGMTEENLYQKIFASHFGHLAIIFLWVSGSLFHVAWQGNFEQWVQDPVNTRPIAHAIWDPQFGKAAVDAFTQAGASNPVDIAYSGVYHWWYTIGMRTNGDLYQGAIFLLILASLALFAGWLHLQPKFRPSLSWFKNAESRLNHHLAGLFGVSSLAWAGHLIHVAIPESRGQHVGWDNFLSTMPHPAGLAPFFTGNWGVYAQNPDTASHVFGTAQGAGTAILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTQFGIGHSIKEMMDAKDFFGTKVEGPFNMPHQGIYETYNNSLHFQLGWHLACLGVITSLVAQHMYSLPPYAFIAQDHTTMAALYTHHQYIAGFLMVGAFAHGAIFLVRDYDPAQNKGNVLDRVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFGTPEKQILIEPVFAQFIQAAHGKLLYGFDTLLSNPDSIASTAWPNYGNVWLPGWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDFGYAFPCDGPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYWHWKHLGVWEGNVAQFNESSTYLMGWLRDYLWLNSSQLINGYNPFGTNNLSVWAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPLANLVRWKDKPVALSIVQARLVGLAHFSVGYILTYAAFLIASTAAKFG

Entity 3 Entity 3 polymer

Description description	Photosystem I iron-sulfur center
Molecular weight formula_weight	8678.0 kDa
EC 编号 ec_number	1.97.1.12
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C1,C2,C3,C4,C6,C5

AHTVKIYDTCIGCTQCVRACPTDVLEMVPWDGCKAGQIASSPRTEDCVGCKRCETACPTDFLSIRVYLGAETTRSMGLAY

Entity 4 Entity 4 polymer

Description description	Photosystem I reaction center subunit II
Molecular weight formula_weight	15258.3 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D1,D2,D3,D4,D6,D5

TTLTGQPPLYGGSTGGLLSAADTEEKYAITWTSPKEQVFEMPTAGAAVMREGENLVYFARKEQCLALAAQQLRPRKINDYKIYRIFPDGETVLIHPKDGVFPEKVNKGREAVNSVPRSIGQNPNPSQLKFTGKKPYDP

Entity 5 Entity 5 polymer

Description description	Photosystem I reaction center subunit IV
Molecular weight formula_weight	8268.3 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E1,E2,E3,E4,E6,E5

VQRGSKVKILRPESYWYNEVGTVASVDQTPGVKYPVIVRFDKVNYTGYSGSASGVNTNNFALHEVQEVAPPKKGK

Entity 6 Entity 6 polymer

Description description	Photosystem I reaction center subunit III
Molecular weight formula_weight	17716.6 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F1,F2,F3,F4,F6,F5

MRRFLALLLVLTLWLGFTPLASADVAGLVPCKDSPAFQKRAAAAVNTTADPASGQKRFERYSQALCGEDGLPHLVVDGRLSRAGDFLIPSVLFLYIAGWIGWVGRAYLIAVRNSGEANEKEIIIDVPLAIKCMLTGFAWPLAALKELASGELTAKDNEITVSPR

Entity 7 Entity 7 polymer

Description description	Photosystem I reaction center subunit VIII
Molecular weight formula_weight	4297.2 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I1,I2,I3,I4,I6,I5

MMGSYAASFLPWIFIPVVCWLMPTVVMGLLFLYIEGEA

Entity 8 Entity 8 polymer

Description description	Photosystem I reaction center subunit IX
Molecular weight formula_weight	4770.7 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J1,J2,J3,J4,J6,J5

MKHFLTYLSTAPVLAAIWMTITAGILIEFNRFYPDLLFHPL

Entity 9 Entity 9 polymer

Description description	Photosystem I reaction center subunit PsaK
Molecular weight formula_weight	8484.0 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K1,K2,K3,K4,K6,K5

MVLATLPDTTWTPSVGLVVILCNLFAIALGRYAIQSRGKGPGLPIALPALFEGFGLPELLATTSFGHLLAAGVVSGLQYAGAL

Entity 10 Entity 10 polymer

Description description	Photosystem I reaction center subunit XI
Molecular weight formula_weight	16156.6 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L1,L2,L3,L4,L6,L5

AEELVKPYNGDPFVGHLSTPISDSGLVKTFIGNLPAYRQGLSPILRGLEVGMAHGYFLIGPWVKLGPLRDSDVANLGGLISGIALILVATACLAAYGLVSFQKGGSSSDPLKTSEGWSQFTAGFFVGAMGSAFVAFFLLENFLVVDGIMTGLFN

Entity 11 Entity 11 polymer

Description description	Photosystem I reaction center subunit XII
Molecular weight formula_weight	3426.1 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M1,M2,M3,M4,M6,M5

MALTDTQVYVALVIALLPAVLAFRLSTELYK

Entity 12 Entity 12 polymer

Description description	PsaX
Molecular weight formula_weight	3845.5 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	X1,X2,X3,X4,X6,X5

ATKSAKPTYAFRTFWAVLLLAINFLVAAYYFAAAA

Entity 13 Entity 13 polymer

Description description	Ferredoxin-1
Molecular weight formula_weight	10722.8 kDa
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	P1,P2,P3,P4,P6,P5

ATYKVTLVRPDGSETTIDVPEDEYILDVAEEQGLDLPFSCRAGACSTCAGKLLEGEVDQSDQSFLDDDQIEKGFVLTCVAYPRSDCKILTNQEEELY

Source Source

Source organism organism	Thermosynechococcus elongatus BP-1
NCBI taxonomy ID ncbi_taxonomy_id	197221
Host organism host_organism	Escherichia coli

Entity 14 Entity 14 non-polymer

Description description	CHLOROPHYLL A
Molecular weight formula_weight	893.5 kDa
Source method src_method	syn
Copy count entity_count	576

Entity 15 Entity 15 non-polymer

Description description	PHYLLOQUINONE
Molecular weight formula_weight	450.7 kDa
Source method src_method	syn
Copy count entity_count	12

Entity 16 Entity 16 non-polymer

Description description	BETA-CAROTENE
Molecular weight formula_weight	536.9 kDa
Source method src_method	syn
Copy count entity_count	132

Entity 17 Entity 17 non-polymer

Description description	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
Molecular weight formula_weight	723.0 kDa
Source method src_method	syn
Copy count entity_count	18

Entity 18 Entity 18 non-polymer

Description description	IRON/SULFUR CLUSTER
Molecular weight formula_weight	351.6 kDa
Source method src_method	syn
Copy count entity_count	18

Entity 19 Entity 19 non-polymer

Description description	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
Molecular weight formula_weight	787.2 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 20 Entity 20 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 21 Entity 21 non-polymer

Description description	FE2/S2 (INORGANIC) CLUSTER
Molecular weight formula_weight	175.8 kDa
Source method src_method	syn
Copy count entity_count	6

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Unit-cell length a length_a	214.101 Å
Unit-cell length b length_b	239.668 Å
Unit-cell length c length_c	265.605 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	101.08 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	4.200 Å
Low-resolution limit resolution_low	158.040 Å
R factor r_factor	0.3542
R_work r_work	0.3530
R_free r_free	0.3770

X-ray Structure of the Electron Transfer Complex between Ferredoxin and Photosystem I

1. Protein Identity and Related Structures Protein Identity & Related Structures

Photosystem I P700 chlorophyll a apoprotein A1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I P700 chlorophyll a apoprotein A2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I iron-sulfur center

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit II

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit IV

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit III

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit VIII

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit IX

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit PsaK

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Photosystem I reaction center subunit XI

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer