7d1t

Cryo-EM Structure of PSII at 1.95 angstrom resolution

Method: ELECTRON MICROSCOPY

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

Photosystem II protein D1

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBA_THEVL
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–334； UniProt 11–344 Author chain a； PDBConstruct 1–334； UniProt 11–344

Photosystem II CP47 reaction center protein

OrganismNot specified

UniProt D0VWR1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBB_THEVL
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–505； UniProt 1–505 Author chain b； PDBConstruct 1–505； UniProt 1–505

Photosystem II CP43 reaction center protein

OrganismNot specified

UniProt D0VWR7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBC_THEVL
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–451； UniProt 1–451 Author chain c； PDBConstruct 1–451； UniProt 1–451

Photosystem II D2 protein

OrganismNot specified

UniProt D0VWR8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBD_THEVL
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–342； UniProt 1–342 Author chain d； PDBConstruct 1–342； UniProt 1–342

Cytochrome b559 subunit alpha

OrganismNot specified

UniProt P12238

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBE_THEVL
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E； PDBConstruct 1–81； UniProt 4–84 Author chain e； PDBConstruct 1–81； UniProt 4–84

Cytochrome b559 subunit beta

OrganismNot specified

UniProt P12239

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBF_THEVL
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 1–34； UniProt 12–45 Author chain f； PDBConstruct 1–34； UniProt 12–45

Photosystem II reaction center protein H

OrganismNot specified

UniProt P19052

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBH_THEVL
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain H； PDBConstruct 1–63； UniProt 1–63 Author chain h； PDBConstruct 1–63； UniProt 1–63

Photosystem II reaction center protein I

OrganismNot specified

UniProt P12240

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBI_THEVL
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain I； PDBConstruct 1–36； UniProt 1–36 Author chain i； PDBConstruct 1–36； UniProt 1–36

Photosystem II reaction center protein J

OrganismNot specified

UniProt Q7DGD4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBJ_THEVL
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain J； PDBConstruct 1–37； UniProt 4–40 Author chain j； PDBConstruct 1–37； UniProt 4–40

Photosystem II reaction center protein K

OrganismNot specified

UniProt P19054

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBK_THEVL
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain K； PDBConstruct 1–37； UniProt 1–37 Author chain k； PDBConstruct 1–37； UniProt 1–37

Photosystem II reaction center protein L

OrganismNot specified

UniProt P12241

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBL_THEVL
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain L； PDBConstruct 1–37； UniProt 1–37 Author chain l； PDBConstruct 1–37； UniProt 1–37

Photosystem II reaction center protein M

OrganismNot specified

UniProt P12312

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBM_THEVL
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain M； PDBConstruct 1–34； UniProt 1–34 Author chain m； PDBConstruct 1–34； UniProt 1–34

Photosystem II manganese-stabilizing polypeptide

OrganismNot specified

UniProt D0VWR2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBO_THEVL
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain O； PDBConstruct 1–244； UniProt 1–244 Author chain o； PDBConstruct 1–244； UniProt 1–244

Photosystem II reaction center protein T

OrganismNot specified

UniProt P12313

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBT_THEVL
Isoform	—
PDB entities	14
Chains and sequence ranges	Author chain T； PDBConstruct 1–31； UniProt 1–31 Author chain t； PDBConstruct 1–31； UniProt 1–31

Photosystem II 12 kDa extrinsic protein

OrganismNot specified

UniProt P56152

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBU_THEVL
Isoform	—
PDB entities	15
Chains and sequence ranges	Author chain U； PDBConstruct 1–97； UniProt 8–104 Author chain u； PDBConstruct 1–97； UniProt 8–104

Cytochrome c-550

OrganismNot specified

UniProt P0A387

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CY550_THEVL
Isoform	—
PDB entities	16
Chains and sequence ranges	Author chain V； PDBConstruct 1–137； UniProt 27–163 Author chain v； PDBConstruct 1–137； UniProt 27–163

Photosystem II reaction center protein Ycf12

OrganismNot specified

UniProt D0VWR3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	YCF12_THEVL
Isoform	—
PDB entities	17
Chains and sequence ranges	Author chain Y； PDBConstruct 1–30； UniProt 1–30 Author chain y； PDBConstruct 1–30； UniProt 1–30

Photosystem II reaction center protein X

OrganismNot specified

UniProt D0VWR4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein Z × 2 （D0VWR5） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBX_THEVL
Isoform	—
PDB entities	18
Chains and sequence ranges	Author chain X； PDBConstruct 1–40； UniProt 1–40 Author chain x； PDBConstruct 1–40； UniProt 1–40

Photosystem II reaction center protein Z

OrganismNot specified

UniProt D0VWR5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II protein Y × 2 （P0DM37） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBZ_THEVL
Isoform	—
PDB entities	19
Chains and sequence ranges	Author chain Z； PDBConstruct 1–62； UniProt 1–62 Author chain z； PDBConstruct 1–62； UniProt 1–62

Photosystem II protein Y

OrganismNot specified

UniProt P0DM37

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	Photosystem II protein D1 × 2 （P51765） Photosystem II CP47 reaction center protein × 2 （D0VWR1） Photosystem II CP43 reaction center protein × 2 （D0VWR7） Photosystem II D2 protein × 2 （D0VWR8） Cytochrome b559 subunit alpha × 2 （P12238） Cytochrome b559 subunit beta × 2 （P12239） Photosystem II reaction center protein H × 2 （P19052） Photosystem II reaction center protein I × 2 （P12240） Photosystem II reaction center protein J × 2 （Q7DGD4） Photosystem II reaction center protein K × 2 （P19054） Photosystem II reaction center protein L × 2 （P12241） Photosystem II reaction center protein M × 2 （P12312） Photosystem II manganese-stabilizing polypeptide × 2 （D0VWR2） Photosystem II reaction center protein T × 2 （P12313） Photosystem II 12 kDa extrinsic protein × 2 （P56152） Cytochrome c-550 × 2 （P0A387） Photosystem II reaction center protein Ycf12 × 2 （D0VWR3） Photosystem II reaction center protein X × 2 （D0VWR4） Photosystem II reaction center protein Z × 2 （D0VWR5） CA-MN4-O5 CLUSTER × 2 FE (II) ION × 2 CHLORIDE ION × 4 CHLOROPHYLL A × 70 PHEOPHYTIN A × 4 BETA-CAROTENE × 20 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL × 8 ;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ; × 4 UNKNOWN LIGAND × 36 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE × 10 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 8 DODECYL-BETA-D-MALTOSIDE × 8 BICARBONATE ION × 2 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 10 PROTOPORPHYRIN IX CONTAINING FE × 2 MAGNESIUM ION × 2 HEME C × 2 (3R)-beta,beta-caroten-3-ol × 2 water × 36	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PSBY_THEVL
Isoform	—
PDB entities	20
Chains and sequence ranges	Author chain R； PDBConstruct 1–34； UniProt 1–34 Author chain r； PDBConstruct 1–34； UniProt 1–34

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	7d1t
Deposition date deposition_date	2020-09-15
Structure title title	Cryo-EM Structure of PSII at 1.95 angstrom resolution
Keywords keywords	Photosystem II, 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.

7d1t__assembly_1__model_1

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

Download this curve (.dat)

7d1t__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7d1t__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	57.33 Å
Rg (electron density)	56.76 Å
Total Rg	57.09 Å
Atom count	50534
Residues	5304
Excluded volume	937060 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7d1t__assembly_1__model_1`	40-meric （40）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (39)

Entity 1 Entity 1 polymer

Description description	Photosystem II protein D1
Molecular weight formula_weight	37029.2 kDa
EC 编号 ec_number	1.10.3.9
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,a
Atom count atom_count	52994

ANLWERFCNWVTSTDNRLYVGWFGVIMIPTLLAATICFVIAFIAAPPVDIDGIREPVSGSLLYGNNIITGAVVPSSNAIGLHFYPIWEAASLDEWLYNGGPYQLIIFHFLLGASCYMGRQWELSYRLGMRPWICVAYSAPLASAFAVFLIYPIGQGSFSDGMPLGISGTFNFMIVFQAEHNILMHPFHQLGVAGVFGGALFCAMHGSLVTSSLIRETTETESANYGYKFGQEEETYNIVAAHGYFGRLIFQYASFNNSRSLHFFLAAWPVVGVWFAALGISTMAFNLNGFNFNHSVIDAKGNVINTWADIINRANLGMEVMHERNAHNFPLDLA

Entity 2 Entity 2 polymer

Description description	Photosystem II CP47 reaction center protein
Molecular weight formula_weight	56068.7 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,b

GLPWYRVHTVLINDPGRLIAAHLMHTALVAGWAGSMALYELATFDPSDPVLNPMWRQGMFVLPFMARLGVTGSWSGWSITGETGIDPGFWSFEGVALAHIVLSGLLFLAACWHWVYWDLELFRDPRTGEPALDLPKMFGIHLFLAGLLCFGFGAFHLTGLFGPGMWVSDPYGLTGSVQPVAPEWGPDGFNPYNPGGVVAHHIAAGIVGIIAGLFHILVRPPQRLYKALRMGNIETVLSSSIAAVFFAAFVVAGTMWYGSATTPIELFGPTRYQWDSSYFQQEINRRVQASLASGATLEEAWSAIPEKLAFYDYIGNNPAKGGLFRTGPMNKGDGIAQAWKGHAVFRNKEGEELFVRRMPAFFESFPVILTDKNGVVKADIPFRRAESKYSFEQQGVTVSFYGGELNGQTFTDPPTVKSYARKAIFGEIFEFDTETLNSDGIFRTSPRGWFTFAHAVFALLFFFGHIWHGARTLFRDVFSGIDPELSPEQVEWGFYQKVGDVTTRK

Entity 3 Entity 3 polymer

Description description	Photosystem II CP43 reaction center protein
Molecular weight formula_weight	49207.2 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,c

ATNRDQESSGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMTLFELAHFIPEKPMYEQGLILIPHIATLGWGVGPGGEVVDTFPFFVVGVVHLISSAVLGFGGVYHAIRGPETLEEYSSFFGYDWKDKNKMTTILGFHLIVLGIGALLLVAKAMFFGGLYDTWAPGGGDVRVITNPTLDPRVIFGYLLKSPFGGEGWIVSVNNLEDVVGGHIWIGLICIAGGIWHILTTPFGWARRAFIWSGEAYLSYSLGALSMMGFIATCFVWFNNTVYPSEFYGPTGPEASQAQAMTFLIRDQKLGANVGSAQGPTGLGKYLMRSPTGEIIFGGETMRFWDFRGPWLEPLRGPNGLDLNKIKNDIQPWQERRAAEYMTHAPLGSLNSVGGVATEINSVNFVSPRSWLATSHFVLAFFFLVGHLWHAGRARAAAAGFEKGIDRESEPVLSMPSLD

Entity 4 Entity 4 polymer

Description description	Photosystem II D2 protein
Molecular weight formula_weight	38419.9 kDa
EC 编号 ec_number	1.10.3.9
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D,d

ERGWFDILDDWLKRDRFVFVGWSGILLFPCAYLALGGWLTGTTFVTSWYTHGLASSYLEGCNFLTVAVSTPANSMGHSLLLLWGPEAQGDFTRWCQLGGLWTFIALHGAFGLIGFMLRQFEIARLVGVRPYNAIAFSAPIAVFVSVFLIYPLGQSSWFFAPSFGVAAIFRFLLFFQGFHNWTLNPFHMMGVAGVLGGALLCAIHGATVENTLFQDGEGASTFRAFNPTQAEETYSMVTANRFWSQIFGIAFSNKRWLHFFMLFVPVTGLWMSAIGVVGLALNLRSYDFISQEIRAAEDPEFETFYTKNLLLNEGIRAWMAPQDQPXENFVFPEEVLPRGNAL

Entity 5 Entity 5 polymer

Description description	Cytochrome b559 subunit alpha
Molecular weight formula_weight	9321.5 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,e

TTGERPFSDIITSVRYWVIHSITIPALFIAGWLFVSTGLAYDVFGTPRPDSYYAQEQRSIPLVTDRFEAKQQVETFLEQLK

Entity 6 Entity 6 polymer

Description description	Cytochrome b559 subunit beta
Molecular weight formula_weight	3868.6 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F,f

SYPIFTVRWVAVHTLAVPTIFFLGAIAAMQFIQR

Entity 7 Entity 7 polymer

Description description	Photosystem II reaction center protein H
Molecular weight formula_weight	7057.3 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H,h

ARRTWLGDILRPLNSEYGKVAPGWGTTPLMAVFMGLFLVFLLIILEIYNSTLILDGVNVSWKA

Entity 8 Entity 8 polymer

Description description	Photosystem II reaction center protein I
Molecular weight formula_weight	4196.0 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I,i

METLKITVYIVVTFFVLLFVFGFLSGDPARNPKRKD

Entity 9 Entity 9 polymer

Description description	Photosystem II reaction center protein J
Molecular weight formula_weight	3756.4 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J,j

EGGRIPLWIVATVAGMGVIVIVGLFFYGAYAGLGSSL

Entity 10 Entity 10 polymer

Description description	Photosystem II reaction center protein K
Molecular weight formula_weight	4101.9 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K,k

KLPEAYAIFDPLVDVLPVIPVLFLALAFVWQAAVGFR

Entity 11 Entity 11 polymer

Description description	Photosystem II reaction center protein L
Molecular weight formula_weight	4299.0 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L,l

MEPNPNRQPVELNRTSLYLGLLLILVLALLFSSYFFN

Entity 12 Entity 12 polymer

Description description	Photosystem II reaction center protein M
Molecular weight formula_weight	3835.5 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M,m

MEVNQLGLIATALFVLVPSVFLIILYVQTESQQK

Entity 13 Entity 13 polymer

Description description	Photosystem II manganese-stabilizing polypeptide
Molecular weight formula_weight	26651.7 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	O,o

QTLTYDDIVGTGLANKCPTLDDTARGAYPIDSSQTYRIARLCLQPTTFLVKEEPKNKRQEAEFVPTKLVTRETTSLDQIQGELKVNSDGSLTFVEEDGIDFQPVTVQMAGGERIPLLFTVKNLVASTQPNVTSITTSTDFKGEFNVPSYRTANFLDPKGRGLASGYDSAIALPQAKEEELARANVKRFSLTKGQISLNVAKVDGRTGEIAGTFESEQLSDDDMGAHEPHEVKIQGVFYASIEPA

Entity 14 Entity 14 polymer

Description description	Photosystem II reaction center protein T
Molecular weight formula_weight	3777.6 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	T,t

METITYVFIFACIIALFFFAIFFREPPRITK

Entity 15 Entity 15 polymer

Description description	Photosystem II 12 kDa extrinsic protein
Molecular weight formula_weight	10966.3 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	U,u

ELVNVVDEKLGTAYGEKIDLNNTNIAAFIQYRGLYPTLAKLIVKNAPYESVEDVLNIPGLTERQKQILRENLEHFTVTEVETALVEGGDRYNNGLYK

Entity 16 Entity 16 polymer

Description description	Cytochrome c-550
Molecular weight formula_weight	15148.3 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	V,v

AELTPEVLTVPLNSEGKTITLTEKQYLEGKRLFQYACASCHVGGITKTNPSLDLRTETLALATPPRDNIEGLVDYMKNPTTYDGEQEIAEVHPSLRSADIFPKMRNLTEKDLVAIAGHILVEPKILGDKWGGGKVYY

Entity 17 Entity 17 polymer

Description description	Photosystem II reaction center protein Ycf12
Molecular weight formula_weight	3228.0 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Y,y

EVIAQLTMIAMIGIAGPMIIFLLAVRRGNL

Entity 18 Entity 18 polymer

Description description	Photosystem II reaction center protein X
Molecular weight formula_weight	4191.0 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	X,x

TITPSLKGFFIGLLSGAVVLGLTFAVLIAISQIDKVQRSL

Entity 19 Entity 19 polymer

Description description	Photosystem II reaction center protein Z
Molecular weight formula_weight	6766.2 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Z,z

MTILFQLALAALVILSFVMVIGVPVAYASPQDWDRSKQLIFLGSGLWIALVLVVGVLNFFVV

Entity 20 Entity 20 polymer

Description description	Photosystem II protein Y
Molecular weight formula_weight	3859.7 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R,r

DWRVLVVLLPVLLAAGWAVRNILPYAVKQVQKLL

Entity 21 Entity 21 non-polymer

Description description	CA-MN4-O5 CLUSTER
Molecular weight formula_weight	339.8 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 22 Entity 22 non-polymer

Description description	FE (II) ION
Molecular weight formula_weight	55.8 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 23 Entity 23 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 24 Entity 24 non-polymer

Description description	CHLOROPHYLL A
Molecular weight formula_weight	893.5 kDa
Source method src_method	syn
Copy count entity_count	70

Entity 25 Entity 25 non-polymer

Description description	PHEOPHYTIN A
Molecular weight formula_weight	871.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 26 Entity 26 non-polymer

Description description	BETA-CAROTENE
Molecular weight formula_weight	536.9 kDa
Source method src_method	syn
Copy count entity_count	20

Entity 27 Entity 27 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	8

Entity 28 Entity 28 non-polymer

Description description	;2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE ;
Molecular weight formula_weight	749.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 29 Entity 29 non-polymer

Description description	UNKNOWN LIGAND
Source method src_method	syn
Copy count entity_count	36

Entity 30 Entity 30 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	10

Entity 31 Entity 31 non-polymer

Description description	DIGALACTOSYL DIACYL GLYCEROL (DGDG)
Molecular weight formula_weight	949.3 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 32 Entity 32 non-polymer

Description description	DODECYL-BETA-D-MALTOSIDE
Molecular weight formula_weight	510.6 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 33 Entity 33 non-polymer

Description description	BICARBONATE ION
Molecular weight formula_weight	61.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 34 Entity 34 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	10

Entity 35 Entity 35 non-polymer

Description description	PROTOPORPHYRIN IX CONTAINING FE
Molecular weight formula_weight	616.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 36 Entity 36 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	nat
Copy count entity_count	2

Entity 37 Entity 37 non-polymer

Description description	HEME C
Molecular weight formula_weight	618.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 38 Entity 38 non-polymer

Description description	(3R)-beta,beta-caroten-3-ol
Molecular weight formula_weight	552.9 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 39 Entity 39 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	2432

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6. Fold Classification (SCOP + CATH) 20 domains

SCOP 2.08 (16 domains)

Domain ID domain_id	d7d1ta_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.26 — Bacterial photosystem II reaction centre, L and M subunits
Superfamily Superfamily superfamily	f.26.1 — Bacterial photosystem II reaction centre, L and M subunits
Family Family family	f.26.1.1 — Bacterial photosystem II reaction centre, L and M subunits

Domain ID domain_id	d7d1tb_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.55 — Photosystem II antenna protein-like
Superfamily Superfamily superfamily	f.55.1 — Photosystem II antenna protein-like
Family Family family	f.55.1.1 — Photosystem II antenna protein-like

Domain ID domain_id	d7d1tc_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.55 — Photosystem II antenna protein-like
Superfamily Superfamily superfamily	f.55.1 — Photosystem II antenna protein-like
Family Family family	f.55.1.1 — Photosystem II antenna protein-like

Domain ID domain_id	d7d1td_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.26 — Bacterial photosystem II reaction centre, L and M subunits
Superfamily Superfamily superfamily	f.26.1 — Bacterial photosystem II reaction centre, L and M subunits
Family Family family	f.26.1.1 — Bacterial photosystem II reaction centre, L and M subunits

Domain ID domain_id	d7d1te_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.38 — Cytochrome b559 subunits
Family Family family	f.23.38.1 — Cytochrome b559 subunits

Domain ID domain_id	d7d1tf_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.38 — Cytochrome b559 subunits
Family Family family	f.23.38.1 — Cytochrome b559 subunits

Domain ID domain_id	d7d1th_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.33 — Photosystem II 10 kDa phosphoprotein PsbH
Family Family family	f.23.33.1 — PsbH-like

Domain ID domain_id	d7d1tj_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.32 — Photosystem II reaction center protein J, PsbJ
Family Family family	f.23.32.1 — PsbJ-like

Domain ID domain_id	d7d1tk_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.36 — Photosystem II reaction center protein K, PsbK
Family Family family	f.23.36.1 — PsbK-like

Domain ID domain_id	d7d1tl_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.31 — Photosystem II reaction center protein L, PsbL
Family Family family	f.23.31.1 — PsbL-like

Domain ID domain_id	d7d1tm_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.35 — Photosystem II reaction center protein M, PsbM
Family Family family	f.23.35.1 — PsbM-like

Domain ID domain_id	d7d1to_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.4 — Transmembrane beta-barrels
Superfamily Superfamily superfamily	f.4.1 — OMPA-like
Family Family family	f.4.1.4 — PsbO-like

Domain ID domain_id	d7d1tu_
Class class	a — All alpha proteins
Fold Fold fold	a.60 — SAM domain-like
Superfamily Superfamily superfamily	a.60.12 — PsbU/PolX domain-like
Family Family family	a.60.12.2 — PsbU-like

Domain ID domain_id	d7d1tv_
Class class	a — All alpha proteins
Fold Fold fold	a.3 — Cytochrome c
Superfamily Superfamily superfamily	a.3.1 — Cytochrome c
Family Family family	a.3.1.1 — monodomain cytochrome c

Domain ID domain_id	d7d1tx_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.40 — Photosystem II reaction center protein X, PsbX
Family Family family	f.23.40.1 — PsbX-like

Domain ID domain_id	d7d1tz_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.17 — Transmembrane helix hairpin
Superfamily Superfamily superfamily	f.17.5 — PsbZ-like
Family Family family	f.17.5.1 — PsbZ-like

CATH v4.4 (4 domains)

Domain ID domain_id	7d1tA01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	85 — Photosynthetic Reaction Center, subunit M; domain 1
Homologous superfamily homologous superfamily	10 — Photosystem II protein D1-like

Domain ID domain_id	7d1tE01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	860 — Photosystem II cytochrome b559, alpha subunit

Domain ID domain_id	7d1ta01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	85 — Photosynthetic Reaction Center, subunit M; domain 1
Homologous superfamily homologous superfamily	10 — Photosystem II protein D1-like

Domain ID domain_id	7d1te01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	860 — Photosystem II cytochrome b559, alpha subunit

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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	—

Resolution resolution	1.95 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	174099

Cryo-EM Structure of PSII at 1.95 angstrom resolution

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

Photosystem II protein D1

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 II CP47 reaction center 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 II CP43 reaction center 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 II D2 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

Cytochrome b559 subunit alpha

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Cytochrome b559 subunit beta

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 II reaction center protein H

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 II reaction center protein I

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 II reaction center protein J

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 II reaction center protein K

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer