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Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution

Electron Microscopy
2.31Å resolution
PDB entry 7zqc coloured by chain, front view.
PDB entry 7zqc coloured by chain, side view.
PDB entry 7zqc coloured by chain, top view.
Source organism: Chlamydomonas reinhardtii
Assembly composition:
hetero icosamer (preferred)
Entry contents: 19 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Photosystem I
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Multimeric state: hetero icosamer
PDBe Complex ID: PDB-CPX-269904

Macromolecules

Photosystem I P700 chlorophyll a apoprotein A1
Chain: A
Length: 751 amino acids
Theoretical weight: 83.24 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P12154 (Residues: 1-751; Coverage: 100%)
Gene names: ps1a1, psaA
Pfam: Photosystem I psaA/psaB protein
InterPro:
Photosystem I P700 chlorophyll a apoprotein A1 in PDB entry 7zqc, assembly 1, front view.
Photosystem I P700 chlorophyll a apoprotein A1 in PDB entry 7zqc, assembly 1, side view.
Photosystem I P700 chlorophyll a apoprotein A1 in PDB entry 7zqc, assembly 1, top view.
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Photosystem I P700 chlorophyll a apoprotein A2
Chain: B
Length: 735 amino acids
Theoretical weight: 82.18 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P09144 (Residues: 1-735; Coverage: 100%)
Gene names: ps1a2, psaB
Pfam: Photosystem I psaA/psaB protein
InterPro:
Photosystem I P700 chlorophyll a apoprotein A2 in PDB entry 7zqc, assembly 1, front view.
Photosystem I P700 chlorophyll a apoprotein A2 in PDB entry 7zqc, assembly 1, side view.
Photosystem I P700 chlorophyll a apoprotein A2 in PDB entry 7zqc, assembly 1, top view.
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Photosystem I iron-sulfur center
Chain: C
Length: 81 amino acids
Theoretical weight: 8.87 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q00914 (Residues: 1-81; Coverage: 100%)
Gene name: psaC
Pfam: 4Fe-4S dicluster domain
InterPro:
Photosystem I iron-sulfur center in PDB entry 7zqc, assembly 1, front view.
Photosystem I iron-sulfur center in PDB entry 7zqc, assembly 1, side view.
Photosystem I iron-sulfur center in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit II, chloroplastic
Chain: D
Length: 196 amino acids
Theoretical weight: 21.37 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q39615 (Residues: 1-196; Coverage: 100%)
Gene name: psaD
Pfam: PsaD
InterPro:
Photosystem I reaction center subunit II, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit II, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit II, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit IV, chloroplastic
Chain: E
Length: 97 amino acids
Theoretical weight: 10.79 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P12352 (Residues: 1-97; Coverage: 100%)
Gene name: PSAE
Pfam: Photosystem I reaction centre subunit IV / PsaE
InterPro:
Photosystem I reaction center subunit IV, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit IV, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit IV, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit III, chloroplastic
Chain: F
Length: 227 amino acids
Theoretical weight: 24.09 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P12356 (Residues: 1-227; Coverage: 100%)
Gene name: PSAF
Pfam: Photosystem I reaction centre subunit III
InterPro:
Photosystem I reaction center subunit III, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit III, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit III, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit V, chloroplastic
Chain: G
Length: 126 amino acids
Theoretical weight: 13.24 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P14224 (Residues: 1-126; Coverage: 100%)
Gene name: PSAG
Pfam: Photosystem I psaG / psaK
InterPro:
Photosystem I reaction center subunit V, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit V, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit V, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit VIII
Chain: I
Length: 106 amino acids
Theoretical weight: 10.59 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: A8IFG7 (Residues: 1-106; Coverage: 100%)
Gene name: CHLRE_03g165100v5
Pfam: Photosystem I reaction centre subunit VIII
InterPro:
Photosystem I reaction center subunit VIII in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit VIII in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit VIII in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit IX
Chain: J
Length: 40 amino acids
Theoretical weight: 4.65 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P59777 (Residues: 1-40; Coverage: 98%)
Gene name: psaJ
Pfam: Photosystem I reaction centre subunit IX / PsaJ
InterPro:
Photosystem I reaction center subunit IX in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit IX in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit IX in PDB entry 7zqc, assembly 1, top view.
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PSI subunit V
Chain: L
Length: 196 amino acids
Theoretical weight: 20.3 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: A8IL32 (Residues: 1-196; Coverage: 100%)
Gene name: CHLRE_12g486300v5
Pfam: Photosystem I reaction centre subunit XI
InterPro:
PSI subunit V in PDB entry 7zqc, assembly 1, front view.
PSI subunit V in PDB entry 7zqc, assembly 1, side view.
PSI subunit V in PDB entry 7zqc, assembly 1, top view.
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Photosystem I reaction center subunit psaK, chloroplastic
Chain: K
Length: 113 amino acids
Theoretical weight: 11.21 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P14225 (Residues: 1-113; Coverage: 100%)
Gene name: PSAK
Pfam: Photosystem I psaG / psaK
InterPro:
Photosystem I reaction center subunit psaK, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Photosystem I reaction center subunit psaK, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Photosystem I reaction center subunit psaK, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chains: 1, Z
Length: 228 amino acids
Theoretical weight: 23.92 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q05093 (Residues: 1-228; Coverage: 100%)
Gene names: CHLRE_06g283050v5, LhcI-6, Lhca1
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chain: 3
Length: 298 amino acids
Theoretical weight: 32.63 KDa
Source organism: Chlamydomonas reinhardtii
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chain: 7
Length: 241 amino acids
Theoretical weight: 26.25 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q84Y02 (Residues: 1-241; Coverage: 100%)
Gene names: CHLRE_16g687900v5, Lhca
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chain: 8
Length: 243 amino acids
Theoretical weight: 25.95 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q75VY7 (Residues: 1-243; Coverage: 100%)
Gene names: CHLRE_06g272650v5, LhcI-4
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chain: 4
Length: 264 amino acids
Theoretical weight: 28.73 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q75VZ0 (Residues: 1-264; Coverage: 100%)
Gene names: CHLRE_10g452050v5, LhcI-1
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chain: 5
Length: 257 amino acids
Theoretical weight: 28.26 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q75VY8 (Residues: 1-257; Coverage: 100%)
Gene names: CHLRE_10g425900v5, LhcI-3
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
Molecule details ›

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Chlorophyll a-b binding protein, chloroplastic
Chain: 6
Length: 257 amino acids
Theoretical weight: 27.81 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: Q75VY6 (Residues: 1-257; Coverage: 100%)
Gene names: CHLRE_06g278213v5, LhcI-5
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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Chlorophyll a-b binding protein, chloroplastic
Chain: 9
Length: 213 amino acids
Theoretical weight: 22.87 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: A8ITV3 (Residues: 1-213; Coverage: 100%)
Gene name: CHLRE_07g344950v5
Pfam: Chlorophyll A-B binding protein
InterPro:
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, front view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, side view.
Chlorophyll a-b binding protein, chloroplastic in PDB entry 7zqc, assembly 1, top view.
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