› 8gwa

Electron Microscopy
2.9Å resolution

Structure of the intact photosynthetic light-harvesting antenna-reaction center complex from a green sulfur bacterium

Released:
DOI: 10.2210/pdb8gwa/pdb
PDB entry 8gwa coloured by chain, front view.
PDB entry 8gwa coloured by chain, side view.
PDB entry 8gwa coloured by chain, top view.
Source organism: Chlorobaculum tepidum TLS
Primary publication:
Cryo-EM structure of the intact photosynthetic light-harvesting antenna-reaction center complex from a green sulfur bacterium.
Chen JH, Wang W, Wang C, Kuang T, Shen JR, Zhang X
J Integr Plant Biol (2022)
PMID: 36125941
Related structures: EMD-34307

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero tetradecamer (preferred)
PDBe Complex ID:
PDB-CPX-126561 (preferred)
Entry contents:
7 distinct polypeptide molecules
Macromolecules (7 distinct):
Bacteriochlorophyll a protein Chains: 1, 2, 3, 4, 5, 6
Molecule details ›
Chains: 1, 2, 3, 4, 5, 6
Length: 366 amino acids
Theoretical weight: 40.34 KDa
Source organism: Chlorobaculum tepidum TLS
UniProt:
  • Canonical: Q46393 (Residues: 1-366; Coverage: 100%)
Gene names: CT1499, fmoA
Sequence domains: Bacteriochlorophyll A protein
P840 reaction center 17 kDa protein Chain: D
Molecule details ›
Chain: D
Length: 143 amino acids
Theoretical weight: 16.63 KDa
Source organism: Chlorobaculum tepidum TLS
UniProt:
  • Canonical: Q8KEP5 (Residues: 1-143; Coverage: 100%)
Gene names: CT0641, pscD
Sequence domains: Photosystem P840 reaction centre protein PscD
4Fe-4S ferredoxin-type domain-containing protein Chain: B
Molecule details ›
Chain: B
Length: 230 amino acids
Theoretical weight: 23.38 KDa
Source organism: Chlorobaculum tepidum TLS
UniProt:
  • Canonical: Q8KAY1 (Residues: 1-230; Coverage: 100%)
Gene names: CT2019, pscB
Sequence domains: 4Fe-4S dicluster domain
Photosystem P840 reaction center, large subunit Chains: A, a
Molecule details ›
Chains: A, a
Length: 731 amino acids
Theoretical weight: 81.78 KDa
Source organism: Chlorobaculum tepidum TLS
UniProt:
  • Canonical: Q8KAY0 (Residues: 1-731; Coverage: 100%)
Gene name: CT2020
Sequence domains: Photosystem I psaA/psaB protein
unkown protein Chain: E
Molecule details ›
Chain: E
Length: 58 amino acids
Theoretical weight: 4.95 KDa
Source organism: Chlorobaculum tepidum TLS
Ric1 protein Chain: F
Molecule details ›
Chain: F
Length: 58 amino acids
Theoretical weight: 6.23 KDa
Source organism: Chlorobaculum tepidum TLS
UniProt:
  • Canonical: Q8KG87 (Residues: 1-58; Coverage: 100%)
Gene name: CT0081
Sequence domains: Proteolipid membrane potential modulator
Cytochrome c Chains: C, c
Molecule details ›
Chains: C, c
Length: 206 amino acids
Theoretical weight: 22.74 KDa
Source organism: Chlorobaculum tepidum TLS
UniProt:
  • Canonical: O07091 (Residues: 1-206; Coverage: 100%)
Gene names: CT1639, pscC
Sequence domains: Photosystem P840 reaction-centre cytochrome c-551

Ligands and Environments

10 bound ligands:
Ligand BCL 73 x BCL
Ligand CDL 4 x CDL
Ligand SF4 3 x SF4
Ligand GS0 2 x GS0
Ligand G2O 4 x G2O
Ligand F39 4 x F39
Ligand LHG 7 x LHG
Ligand LMG 2 x LMG
Ligand CA 2 x CA
Ligand F26 2 x F26
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 2.9Å
Relevant EMDB volumes: EMD-34307

Quick links

Citations

1 citations in other articles

Structure of the Acidobacteria homodimeric reaction center bound with cytochrome c.
Dong et al. (2022)