4n7k

X-ray diffraction
2.85Å resolution

Zinc Substituted Reaction Center of the Rhodobacter sphaeroides

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: 241 amino acids
Theoretical weight: 26.12 KDa
Source organism: Rhodobacter sphaeroides
Expression system: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0Y7 (Residues: 11-251; Coverage: 93%)
Gene name: puhA
Sequence domains: PRC-barrel domain
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
Expression system: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0Y8 (Residues: 2-282; Coverage: 100%)
Gene name: pufL
Sequence domains: Photosynthetic reaction centre protein
Structure domains: Photosystem II protein D1-like
Reaction center protein M chain Chain: M
Molecule details ›
Chain: M
Length: 303 amino acids
Theoretical weight: 34 KDa
Source organism: Rhodobacter sphaeroides
Expression system: Rhodobacter sphaeroides
UniProt:
  • Canonical: P0C0Y9 (Residues: 2-304; Coverage: 98%)
Gene name: pufM
Structure domains: Photosystem II protein D1-like

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL7-1
Spacegroup: P3121
Unit cell:
a: 139.45Å b: 139.45Å c: 184.181Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.185 0.182 0.243
Expression system: Rhodobacter sphaeroides