PDBe 1l9j

X-ray diffraction
3.25Å resolution

X-Ray Structure of the Cytochrome-c(2)-Photosynthetic Reaction Center Electron Transfer Complex from Rhodobacter sphaeroides in Type I Co-Crystals

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Cytochrome c2 Chains: C, D
Molecule details ›
Chains: C, D
Length: 124 amino acids
Theoretical weight: 13.49 KDa
Source organism: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0X8 (Residues: 1-124; Coverage: 100%)
Gene name: cycA
Sequence domains: Cytochrome c
Structure domains: Cytochrome c
Reaction center protein H chain Chains: H, T
Molecule details ›
Chains: H, T
Length: 260 amino acids
Theoretical weight: 28.07 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, R
Molecule details ›
Chains: L, R
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, S
Molecule details ›
Chains: M, S
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 BL9-1
Spacegroup: P21
Unit cell:
a: 77.93Å b: 80.312Å c: 246.575Å
α: 90° β: 92.41° γ: 90°
R-values:
R R work R free
0.263 0.248 0.287