9lzk

The PSI1-IsiA13 complex with double-layered IsiA proteins bound to the monomeric PSI core

Method: ELECTRON MICROSCOPY

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

Iron stress-induced chlorophyll-binding protein

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 24	Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ISIA_THEVB
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain 1； PDBConstruct 1–358； UniProt 1–358 Author chain 2； PDBConstruct 1–358； UniProt 1–358 Author chain 3； PDBConstruct 1–358； UniProt 1–358 Author chain 4； PDBConstruct 1–358； UniProt 1–358 Author chain 5； PDBConstruct 1–358； UniProt 1–358 Author chain 6； PDBConstruct 1–358； UniProt 1–358 Author chain a； PDBConstruct 1–358； UniProt 1–358 Author chain b； PDBConstruct 1–358； UniProt 1–358 Author chain c； PDBConstruct 1–358； UniProt 1–358 Author chain d； PDBConstruct 1–358； UniProt 1–358 Author chain e； PDBConstruct 1–358； UniProt 1–358 Author chain f； PDBConstruct 1–358； UniProt 1–358 Author chain g； PDBConstruct 1–358； UniProt 1–358

Photosystem I P700 chlorophyll a apoprotein A1

OrganismNot specified

UniProt P0A405

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAA_THEVB
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain A； 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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAB_THEVB
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain B； PDBConstruct 1–741； UniProt 1–741

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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAC_THEVB
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain C； PDBConstruct 1–81； UniProt 1–81

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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAD_THEVB
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain D； PDBConstruct 1–139； UniProt 1–139

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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAE_THEVB
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain E； PDBConstruct 1–76； UniProt 1–76

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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAF_THEVB
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain F； 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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAI_THEVB
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain I； 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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAJ_THEVB
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain J； 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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit XII × 1 （P0A403） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAK_THEVB
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain K； PDBConstruct 1–83； UniProt 1–83

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 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I 4.8K protein × 1 （Q8DKP6） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSAM_THEVB
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain M； PDBConstruct 1–31； UniProt 1–31

Photosystem I 4.8K protein

OrganismNot specified

UniProt Q8DKP6

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 24	Iron stress-induced chlorophyll-binding protein × 13 （Q8DK20） Photosystem I P700 chlorophyll a apoprotein A1 × 1 （P0A405） Photosystem I P700 chlorophyll a apoprotein A2 × 1 （P0A407） Photosystem I iron-sulfur center × 1 （P0A415） Photosystem I reaction center subunit II × 1 （P0A420） Photosystem I reaction center subunit IV × 1 （P0A423） Photosystem I reaction center subunit III × 1 （P0A401） Photosystem I reaction center subunit VIII × 1 （P0A427） Photosystem I reaction center subunit IX × 1 （P0A429） Photosystem I reaction center subunit PsaK × 1 （P0A425） Photosystem I reaction center subunit XII × 1 （P0A403） CHLOROPHYLL A × 313 BETA-CAROTENE × 73 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 14 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 6 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 5 PHYLLOQUINONE × 2 IRON/SULFUR CLUSTER × 3 DODECYL-ALPHA-D-MALTOSIDE × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8DKP6_THEVB
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain X； PDBConstruct 1–39； UniProt 1–39

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	9lzk
Deposition date deposition_date	2025-02-21
Structure title title	The PSI1-IsiA13 complex with double-layered IsiA proteins bound to the monomeric PSI core
Keywords keywords	Photosystem-antenna Complex, PHOTOSYNTHESIS; PHOTOSYNTHESIS
Experimental Method method	ELECTRON MICROSCOPY

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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.

9lzk__assembly_1__model_1

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

Download this curve (.dat)

9lzk__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9lzk__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	76.14 Å
Rg (electron density)	76.17 Å
Total Rg	76.17 Å
Atom count	72827
Residues	6539
Excluded volume	1365200 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9lzk__assembly_1__model_1`	24-meric （24）	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 (20)

Entity 1 Entity 1 polymer

Description description	Iron stress-induced chlorophyll-binding protein
Molecular weight formula_weight	39284.3 kDa
Source method src_method	nat
Copy count entity_count	13

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	3,4,5,6,2,1,c,d,e,f,g,b,a
Atom count atom_count	72827

MAIASESPTTVTSAGLQTYGQTNVKYDWWAGNARFVNLSGLFIAAHVAQAALSVFWAGAFTLYEISQYKPDLPMGEQGLILLPHLATLGFGIGEGGKVVDLYPYFVIGAVHLISSAVLGAGALFHTFRAPHDLSTATGRARRFHFRWDDPKQLGIILGHHLLFLGFGALLLVLKATIWGGLYDANLQTVRLITQPTLDPFVIYGYQTHFASINSLEDLVGGHIYIAILLIAGGIWHILVPPLTWARKLLMFNAEAILSYSLGGIALAGFVAAYFCAVNTLAYPVEFYGPPLEVKLGIAPYFADTIELPLGQHTSRAWLANAHFFLAFFFLQGHLWHALRAMGFNFKQLETFLNPAIEN

Entity 2 Entity 2 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	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A

MTISPPEREPKVRVVVDNDPVPTSFEKWAKPGHFDRTLARGPQTTTWIWNLHALAHDFDTHTSDLEDISRKIFSAHFGHLAVVFIWLSGMYFHGAKFSNYEAWLADPTGIKPSAQVVWPIVGQGILNGDVGGGFHGIQITSGLFQLWRASGITNEFQLYCTAIGGLVMAGLMLFAGWFHYHKRAPKLEWFQNVESMLNHHLAGLLGLGSLAWAGHQIHVSLPINKLLDAGVAAKDIPLPHEFILNPSLMAELYPKVDWGFFSGVIPFFTFNWAAYSDFLTFNGGLNPVTGGLWLSDTAHHHLAIAVLFIIAGHMYRTNWGIGHSLKEILEAHKGPFTGAGHKGLYEVLTTSWHAQLAINLAMMGSLSIIVAQHMYAMPPYPYLATDYPTQLSLFTHHMWIGGFLVVGGAAHGAIFMVRDYDPAMNQNNVLDRVLRHRDAIISHLNWVCIFLGFHSFGLYVHNDTMRAFGRPQDMFSDTGIQLQPVFAQWVQNLHTLAPGGTAPNAAATASVAFGGDVVAVGGKVAMMPIVLGTADFMVHHIHAFTIHVTVLILLKGVLFARSSRLIPDKANLGFRFPCDGPGRGGTCQVSGWDHVFLGLFWMYNCISVVIFHFSWKMQSDVWGTVAPDGTVSHITGGNFAQSAITINGWLRDFLWAQASQVIGSYGSALSAYGLLFLGAHFIWAFSLMFLFSGRGYWQELIESIVWAHNKLKVAPAIQPRALSIIQGRAVGVAHYLLGGIATTWAFFLARIISVG

Entity 3 Entity 3 polymer

Description description	Photosystem I P700 chlorophyll a apoprotein A2
Molecular weight formula_weight	83123.6 kDa
EC 编号 ec_number	1.97.1.12
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MATKFPKFSQDLAQDPTTRRIWYAIAMAHDFESHDGMTEENLYQKIFASHFGHLAIIFLWVSGSLFHVAWQGNFEQWVQDPVNTRPIAHAIWDPQFGKAAVDAFTQAGASNPVDIAYSGVYHWWYTIGMRTNGDLYQGAIFLLILASLALFAGWLHLQPKFRPSLSWFKNAESRLNHHLAGLFGVSSLAWAGHLIHVAIPESRGQHVGWDNFLSTMPHPAGLAPFFTGNWGVYAQNPDTASHVFGTAQGAGTAILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTQFGIGHSIKEMMDAKDFFGTKVEGPFNMPHQGIYETYNNSLHFQLGWHLACLGVITSLVAQHMYSLPPYAFIAQDHTTMAALYTHHQYIAGFLMVGAFAHGAIFLVRDYDPAQNKGNVLDRVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFGTPEKQILIEPVFAQFIQAAHGKLLYGFDTLLSNPDSIASTAWPNYGNVWLPGWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDFGYAFPCDGPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYWHWKHLGVWEGNVAQFNESSTYLMGWLRDYLWLNSSQLINGYNPFGTNNLSVWAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPLANLVRWKDKPVALSIVQARLVGLAHFSVGYILTYAAFLIASTAAKFG

Entity 4 Entity 4 polymer

Description description	Photosystem I iron-sulfur center
Molecular weight formula_weight	8809.2 kDa
EC 编号 ec_number	1.97.1.12
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

MAHTVKIYDTCIGCTQCVRACPTDVLEMVPWDGCKAGQIASSPRTEDCVGCKRCETACPTDFLSIRVYLGAETTRSMGLAY

Entity 5 Entity 5 polymer

Description description	Photosystem I reaction center subunit II
Molecular weight formula_weight	15389.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

MTTLTGQPPLYGGSTGGLLSAADTEEKYAITWTSPKEQVFEMPTAGAAVMREGENLVYFARKEQCLALAAQQLRPRKINDYKIYRIFPDGETVLIHPKDGVFPEKVNKGREAVNSVPRSIGQNPNPSQLKFTGKKPYDP

Entity 6 Entity 6 polymer

Description description	Photosystem I reaction center subunit IV
Molecular weight formula_weight	8399.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

MVQRGSKVKILRPESYWYNEVGTVASVDQTPGVKYPVIVRFDKVNYTGYSGSASGVNTNNFALHEVQEVAPPKKGK

Entity 7 Entity 7 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	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MRRFLALLLVLTLWLGFTPLASADVAGLVPCKDSPAFQKRAAAAVNTTADPASGQKRFERYSQALCGEDGLPHLVVDGRLSRAGDFLIPSVLFLYIAGWIGWVGRAYLIAVRNSGEANEKEIIIDVPLAIKCMLTGFAWPLAALKELASGELTAKDNEITVSPR

Entity 8 Entity 8 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	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I

MMGSYAASFLPWIFIPVVCWLMPTVVMGLLFLYIEGEA

Entity 9 Entity 9 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	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J

MKHFLTYLSTAPVLAAIWMTITAGILIEFNRFYPDLLFHPL

Entity 10 Entity 10 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	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

MVLATLPDTTWTPSVGLVVILCNLFAIALGRYAIQSRGKGPGLPIALPALFEGFGLPELLATTSFGHLLAAGVVSGLQYAGAL

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	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M

MALTDTQVYVALVIALLPAVLAFRLSTELYK

Entity 12 Entity 12 polymer

Description description	Photosystem I 4.8K protein
Molecular weight formula_weight	4424.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	X

MSTMATKSAKPTYAFRTFWAVLLLAINFLVAAYYFGILK

Entity 13 Entity 13 non-polymer

Description description	CHLOROPHYLL A
Molecular weight formula_weight	893.5 kDa
Source method src_method	syn
Copy count entity_count	313

Entity 14 Entity 14 non-polymer

Description description	BETA-CAROTENE
Molecular weight formula_weight	536.9 kDa
Source method src_method	syn
Copy count entity_count	73

Entity 15 Entity 15 non-polymer

Description description	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
Molecular weight formula_weight	795.1 kDa
Source method src_method	syn
Copy count entity_count	14

Entity 16 Entity 16 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 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	5

Entity 18 Entity 18 non-polymer

Description description	PHYLLOQUINONE
Molecular weight formula_weight	450.7 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 19 Entity 19 non-polymer

Description description	IRON/SULFUR CLUSTER
Molecular weight formula_weight	351.6 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 20 Entity 20 non-polymer

Description description	DODECYL-ALPHA-D-MALTOSIDE
Molecular weight formula_weight	510.6 kDa
Source method src_method	syn
Copy count entity_count	4

▶

Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	triclinic

Resolution resolution	3.50 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	55670

The PSI1-IsiA13 complex with double-layered IsiA proteins bound to the monomeric PSI core

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

Iron stress-induced chlorophyll-binding protein

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 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