PDBe 1l9b

X-ray diffraction
2.4Å resolution

X-Ray Structure of the Cytochrome-c(2)-Photosynthetic Reaction Center Electron Transfer Complex from Rhodobacter sphaeroides in Type II 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 Chain: C
Molecule details ›
Chain: C
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 Chain: H
Molecule details ›
Chain: H
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 Chain: L
Molecule details ›
Chain: L
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 Chain: M
Molecule details ›
Chain: M
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

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P21
Unit cell:
a: 78.222Å b: 115.65Å c: 79.677Å
α: 90° β: 110.29° γ: 90°
R-values:
R R work R free
0.22 0.22 0.264