PDBe 2wx5

X-ray diffraction
2.63Å resolution

hexa-coordination of a bacteriochlorophyll cofactor in the Rhodobacter sphaeroides reaction centre

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 Chain: H
Molecule details ›
Chain: H
Length: 260 amino acids
Theoretical weight: 28.07 KDa
Source organism: Rhodobacter sphaeroides
Expression system: Rhodobacter sphaeroides
UniProt:
  • Canonical: Q3J170 (Residues: 1-260; Coverage: 100%)
Gene names: RHOS4_18960, RSP_0291, puhA
Sequence domains:
Structure domains:
Reaction center protein L chain Chain: L
Molecule details ›
Chain: L
Length: 281 amino acids
Theoretical weight: 31.36 KDa
Source organism: Rhodobacter sphaeroides
Expression system: Rhodobacter sphaeroides
UniProt:
  • Canonical: Q3J1A5 (Residues: 2-282; Coverage: 100%)
Gene names: RHOS4_18610, RSP_0257, 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
Expression system: Rhodobacter sphaeroides
UniProt:
  • Canonical: Q3J1A6 (Residues: 2-308; Coverage: 100%)
Gene names: RHOS4_18600, RSP_0256, 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: SRS BEAMLINE PX14.1
Spacegroup: P3121
Unit cell:
a: 140.18Å b: 140.18Å c: 185.401Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.239 0.237 0.279
Expression system: Rhodobacter sphaeroides