› 5zji

Electron Microscopy
3.3Å resolution

Structure of photosystem I supercomplex with light-harvesting complexes I and II

Released:
DOI: 10.2210/pdb5zji/pdb
PDB entry 5zji coloured by chain, front view.
PDB entry 5zji coloured by chain, side view.
PDB entry 5zji coloured by chain, top view.
Source organisms:
Primary publication:
Structure of the maize photosystem I supercomplex with light-harvesting complexes I and II.
Pan X, Ma J, Su X, Cao P, Chang W, Liu Z, Zhang X, Li M
Science 360 1109-1113 (2018)
PMID: 29880686
Related structures: EMD-6932

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 21-mer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-100255 (preferred)
Entry contents:
20 distinct polypeptide molecules
Macromolecules (20 distinct):
Chlorophyll a-b binding protein, chloroplastic Chain: 1
Molecule details ›
Chain: 1
Length: 245 amino acids
Theoretical weight: 26.34 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6SSN3 (Residues: 1-245; Coverage: 100%)
Gene names: 100281791, ZEAMMB73_Zm00001d015385
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 2
Molecule details ›
Chain: 2
Length: 270 amino acids
Theoretical weight: 29.24 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6T892 (Residues: 1-270; Coverage: 100%)
Gene names: 100282512, ZEAMMB73_Zm00001d021906
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 3
Molecule details ›
Chain: 3
Length: 267 amino acids
Theoretical weight: 29.01 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6SUC4 (Residues: 1-267; Coverage: 100%)
Gene name: ZEAMMB73_Zm00001d046786
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: 4
Molecule details ›
Chain: 4
Length: 252 amino acids
Theoretical weight: 27.41 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6SZR1 (Residues: 1-252; Coverage: 100%)
Sequence domains: Chlorophyll A-B binding protein
Photosystem I P700 chlorophyll a apoprotein A1 Chain: A
Molecule details ›
Chain: A
Length: 750 amino acids
Theoretical weight: 83.19 KDa
Source organism: Zea mays
UniProt:
  • Canonical: P04966 (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: 734 amino acids
Theoretical weight: 82.65 KDa
Source organism: Zea mays subsp. mays
UniProt:
  • Canonical: A0A059Q6U2 (Residues: 1-734; Coverage: 100%)
Gene name: 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: 8.91 KDa
Source organism: Zea mays subsp. mays
UniProt:
  • Canonical: A0A172FJJ4 (Residues: 1-81; Coverage: 100%)
Gene names: ZHUE_g73, psaC
Sequence domains: 4Fe-4S dicluster domain
Structure domains: Alpha-Beta Plaits
Photosystem I reaction center subunit II, chloroplastic Chain: D
Molecule details ›
Chain: D
Length: 199 amino acids
Theoretical weight: 21.6 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B4FAW3 (Residues: 1-199; Coverage: 100%)
Gene name: ZEAMMB73_Zm00001d034543
Sequence domains: PsaD
Photosystem I reaction center subunit IV A Chain: E
Molecule details ›
Chain: E
Length: 136 amino acids
Theoretical weight: 14.43 KDa
Source organism: Zea mays
UniProt:
  • Canonical: A0A1D6HY75 (Residues: 1-136; Coverage: 100%)
Gene name: ZEAMMB73_Zm00001d019518
Sequence domains: Photosystem I reaction centre subunit IV / PsaE
Structure domains: SH3 type barrels.
Photosystem I reaction center subunit III Chain: F
Molecule details ›
Chain: F
Length: 225 amino acids
Theoretical weight: 23.83 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6SRI3 (Residues: 1-225; Coverage: 100%)
Gene name: ZEAMMB73_Zm00001d034283
Sequence domains: Photosystem I reaction centre subunit III
Structure domains: Photosystem I PsaF, reaction centre subunit III
Photosystem I reaction center subunit V, chloroplastic Chain: G
Molecule details ›
Chain: G
Length: 145 amino acids
Theoretical weight: 15.33 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6U534 (Residues: 1-145; Coverage: 100%)
Gene names: 100285458, ZEAMMB73_Zm00001d005996
Sequence domains: Photosystem I psaG / psaK
Photosystem I reaction center subunit VI, chloroplastic Chain: H
Molecule details ›
Chain: H
Length: 142 amino acids
Theoretical weight: 14.95 KDa
Source organism: Zea mays
UniProt:
  • Canonical: O65101 (Residues: 1-142; Coverage: 100%)
Gene name: PSAH
Sequence domains: Photosystem I reaction centre subunit VI
Photosystem I reaction center subunit VIII Chain: I
Molecule details ›
Chain: I
Length: 36 amino acids
Theoretical weight: 4.03 KDa
Source organism: Zea mays
UniProt:
  • Canonical: P30980 (Residues: 1-36; Coverage: 100%)
Gene name: psaI
Sequence domains: Photosystem I reaction centre subunit VIII
Photosystem I reaction center subunit IX Chain: J
Molecule details ›
Chain: J
Length: 42 amino acids
Theoretical weight: 4.75 KDa
Source organism: Zea mays
UniProt:
  • Canonical: P62596 (Residues: 1-42; Coverage: 100%)
Gene name: psaJ
Sequence domains: Photosystem I reaction centre subunit IX / PsaJ
Structure domains: Single helix bin
PSI-K Chain: K
Molecule details ›
Chain: K
Length: 134 amino acids
Theoretical weight: 13.67 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6TR16 (Residues: 1-134; Coverage: 100%)
Gene names: 100286020, ZEAMMB73_Zm00001d018797
Sequence domains: Photosystem I psaG / psaK
PSI subunit V Chain: L
Molecule details ›
Chain: L
Length: 211 amino acids
Theoretical weight: 22.35 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6STT2 (Residues: 1-211; Coverage: 100%)
Sequence domains: Photosystem I reaction centre subunit XI
16kDa membrane protein Chain: O
Molecule details ›
Chain: O
Length: 127 amino acids
Theoretical weight: 14.38 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6SQZ7 (Residues: 1-127; Coverage: 100%)
Photosystem I reaction center subunit N Chain: N
Molecule details ›
Chain: N
Length: 145 amino acids
Theoretical weight: 15.66 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6TXS5 (Residues: 1-145; Coverage: 100%)
Sequence domains: Photosystem I reaction centre subunit N (PSAN or PSI-N)
Chlorophyll a-b binding protein 1, chloroplastic Chains: X, Z
Molecule details ›
Chains: X, Z
Length: 232 amino acids
Theoretical weight: 24.88 KDa
Source organism: Zea mays
UniProt:
  • Canonical: P12329 (Residues: 31-262; Coverage: 89%)
Gene name: CAB1
Sequence domains: Chlorophyll A-B binding protein
Chlorophyll a-b binding protein, chloroplastic Chain: Y
Molecule details ›
Chain: Y
Length: 228 amino acids
Theoretical weight: 24.78 KDa
Source organism: Zea mays
UniProt:
  • Canonical: B6SZT9 (Residues: 33-260; Coverage: 88%)
Gene names: 100281879, ZEAMMB73_Zm00001d033132, ZEAMMB73_Zm00001d033136
Sequence domains: Chlorophyll A-B binding protein

Ligands and Environments

13 bound ligands:
Ligand CHL 30 x CHL
Ligand CLA 171 x CLA
Ligand LUT 11 x LUT
Ligand XAT 7 x XAT
Ligand BCR 26 x BCR
Ligand LHG 8 x LHG
Ligand LMG 5 x LMG
Ligand CL0 1 x CL0
Ligand PQN 2 x PQN
Ligand SF4 3 x SF4
Ligand LMU 2 x LMU
Ligand DGD 2 x DGD
Ligand NEX 3 x NEX
1 modified residue:
Ligand TPO 1 x TPO

Experiments and Validation Details

Entry percentile scores
Resolution: 3.3Å
Relevant EMDB volumes: EMD-6932

Quick links

Citations

10 review citations

Composition, phosphorylation and dynamic organization of photosynthetic protein complexes in plant thylakoid membrane.
Rantala et al. (2020)
9 more

7 mentions without citation

Dynamic Regulation of the Light-Harvesting System through State Transitions in Land Plants and Green Algae.
Shang et al. (2023)
6 more