PDBe 1aig

X-ray diffraction
2.6Å resolution

PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE D+QB-CHARGE SEPARATED STATE

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Reaction center protein H chain Chains: H, P
Molecule details ›
Chains: H, P
Length: 260 amino acids
Theoretical weight: 28.14 KDa
Source organism: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0Y7 (Residues: 1-260; Coverage: 100%)
Gene name: puhA
Sequence domains:
Structure domains:
Reaction center protein L chain Chains: L, N
Molecule details ›
Chains: L, N
Length: 281 amino acids
Theoretical weight: 31.35 KDa
Source organism: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0Y8 (Residues: 2-282; Coverage: 100%)
Gene name: pufL
Sequence domains: Photosynthetic reaction centre protein
Structure domains: Membrane spanning alpha-helix pairs
Reaction center protein M chain Chains: M, O
Molecule details ›
Chains: M, O
Length: 307 amino acids
Theoretical weight: 34.4 KDa
Source organism: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0Y9 (Residues: 2-308; Coverage: 100%)
Gene name: pufM
Sequence domains: Photosynthetic reaction centre protein
Structure domains: Membrane spanning alpha-helix pairs

Ligands and Environments


No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL7-1
Spacegroup: P43212
Unit cell:
a: 140.1Å b: 140.1Å c: 271.7Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.215 0.215 0.299