› 7zqc

Electron Microscopy
2.31Å resolution

Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution

Released:
DOI: 10.2210/pdb7zqc/pdb
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
Primary publication:
Algal photosystem I dimer and high-resolution model of PSI-plastocyanin complex.
Naschberger A, Mosebach L, Tobiasson V, Kuhlgert S, Scholz M, Perez-Boerema A, Ho TTH, Vidal-Meireles A, Takahashi Y, Hippler M, Amunts A
OpenAccess logo Nat Plants 8 1191-1201 (2022)
PMID: 36229605
Related structures: EMD-14870

Function and Biology Details

Reaction catalysed: 
Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero icosamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-501495 (preferred)
Entry contents:
19 distinct polypeptide molecules
Macromolecules (19 distinct):
Photosystem I P700 chlorophyll a apoprotein A1 Chain: A
Molecule details ›
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
Sequence domains: Photosystem I psaA/psaB protein
Photosystem I P700 chlorophyll a apoprotein A2 Chain: B
Molecule details ›
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
Sequence domains: Photosystem I psaA/psaB protein
Photosystem I iron-sulfur center Chain: C
Molecule details ›
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
Sequence domains: 4Fe-4S dicluster domain
Photosystem I reaction center subunit II, chloroplastic Chain: D
Molecule details ›
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
Sequence domains: PsaD
Photosystem I reaction center subunit IV, chloroplastic Chain: E
Molecule details ›
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
Sequence domains: Photosystem I reaction centre subunit IV / PsaE
Photosystem I reaction center subunit III, chloroplastic Chain: F
Molecule details ›
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
Sequence domains: Photosystem I reaction centre subunit III
Photosystem I reaction center subunit V, chloroplastic Chain: G
Molecule details ›
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
Sequence domains: Photosystem I psaG / psaK
Photosystem I reaction center subunit VIII Chain: I
Molecule details ›
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
Sequence domains: Photosystem I reaction centre subunit VIII
Photosystem I reaction center subunit IX Chain: J
Molecule details ›
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
Sequence domains: Photosystem I reaction centre subunit IX / PsaJ
PSI subunit V Chain: L
Molecule details ›
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
Sequence domains: Photosystem I reaction centre subunit XI
Photosystem I reaction center subunit psaK, chloroplastic Chain: K
Molecule details ›
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
Sequence domains: Photosystem I psaG / psaK
Chlorophyll a-b binding protein, chloroplastic Chains: 1, Z
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 3
Molecule details ›
Chain: 3
Length: 298 amino acids
Theoretical weight: 32.63 KDa
Source organism: Chlamydomonas reinhardtii
Chlorophyll a-b binding protein, chloroplastic Chain: 7
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 8
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 4
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 5
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 6
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 9
Molecule details ›
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
Sequence domains: Chlorophyll A-B binding protein

Ligands and Environments

13 bound ligands:
Ligand CL0 1 x CL0
Ligand CLA 198 x CLA
Ligand PQN 2 x PQN
Ligand LHG 15 x LHG
Ligand BCR 27 x BCR
Ligand SF4 3 x SF4
Ligand LMU 32 x LMU
Ligand LMG 15 x LMG
Ligand LUT 18 x LUT
Ligand DGD 1 x DGD
Ligand CHL 30 x CHL
Ligand XAT 7 x XAT
Ligand NEX 2 x NEX
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 2.31Å
Relevant EMDB volumes: EMD-14870

Quick links

Citations

1 review citation

Life in biophotovoltaics systems.
Ge-Zhang et al. (2023)
5 other articles