› 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:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero icosamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-269904 (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
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
Photosystem I iron-sulfur center Chain: C
Photosystem I reaction center subunit II, chloroplastic Chain: D
Photosystem I reaction center subunit IV, chloroplastic Chain: E
Photosystem I reaction center subunit III, chloroplastic Chain: F
Photosystem I reaction center subunit V, chloroplastic Chain: G
Photosystem I reaction center subunit VIII Chain: I
Photosystem I reaction center subunit IX Chain: J
PSI subunit V Chain: L
Photosystem I reaction center subunit psaK, chloroplastic Chain: K
Chlorophyll a-b binding protein, chloroplastic Chains: 1, Z
Chlorophyll a-b binding protein, chloroplastic Chain: 3
Chlorophyll a-b binding protein, chloroplastic Chain: 7
Chlorophyll a-b binding protein, chloroplastic Chain: 8
Chlorophyll a-b binding protein, chloroplastic Chain: 4
Chlorophyll a-b binding protein, chloroplastic Chain: 5
Chlorophyll a-b binding protein, chloroplastic Chain: 6
Chlorophyll a-b binding protein, chloroplastic Chain: 9

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