› 7r3k

Electron Microscopy
2.52Å resolution

Chlamydomonas reinhardtii TSP9 mutant small Photosystem I complex

Released:
DOI: 10.2210/pdb7r3k/pdb
PDB entry 7r3k coloured by chain, front view.
PDB entry 7r3k coloured by chain, side view.
PDB entry 7r3k coloured by chain, top view.
Source organism: Chlamydomonas reinhardtii
Primary publication:
Structure of Photosystem I Supercomplex Isolated from a Chlamydomonas reinhardtii Cytochrome b6f Temperature-Sensitive Mutant.
Schwartz T, Fadeeva M, Klaiman D, Nelson N
Biomolecules 13 (2023)
PMID: 36979472
Related structures: EMD-14248

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 octadecamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-227048 (preferred)
Entry contents:
17 distinct polypeptide molecules
Macromolecules (17 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: 21.4 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: 41 amino acids
Theoretical weight: 4.75 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P59777 (Residues: 1-41; Coverage: 100%)
Gene name: psaJ
Sequence domains: Photosystem I reaction centre subunit IX / PsaJ
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
UniProt:
  • Canonical: Q75VY9 (Residues: 1-267; Coverage: 100%)
Gene names: CHLRE_11g467573v5, LhcI-2
Sequence domains: Chlorophyll A-B binding protein
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

Ligands and Environments

21 bound ligands:
Ligand CL0 1 x CL0
Ligand CLA 186 x CLA
Ligand PQN 2 x PQN
Ligand SF4 3 x SF4
Ligand BCR 28 x BCR
Ligand LHG 12 x LHG
Ligand LMT 16 x LMT
Ligand DGD 1 x DGD
Ligand CA 1 x CA
Ligand RRX 3 x RRX
Ligand C7Z 3 x C7Z
Ligand LMG 3 x LMG
Ligand DAO 1 x DAO
Ligand LUT 14 x LUT
Ligand CHL 28 x CHL
Ligand SPH 3 x SPH
Ligand 3PH 4 x 3PH
Ligand DGA 1 x DGA
Ligand PLM 1 x PLM
Ligand SQD 1 x SQD
Ligand ERG 2 x ERG
1 modified residue:
Ligand SNC 1 x SNC

Experiments and Validation Details

Entry percentile scores
Resolution: 2.52Å
Relevant EMDB volumes: EMD-14248

Quick links

Citations

2 mentions without citation

PTM-Psi: A python package to facilitate the computational investigation of post-translational modification on protein structures and their impacts on dynamics and functions.
Mejia-Rodriguez et al. (2023)
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