PDBe 4f0m

X-ray diffraction
2.25Å resolution

UNACTIVATED RUBISCO with MAGNESIUM AND A WATER MOLECULE BOUND

Released:
Source organism: Galdieria sulphuraria
Primary publication:
Structural mechanism of RuBisCO activation by carbamylation of the active site lysine.
Proc. Natl. Acad. Sci. U.S.A. (2012)
PMID: 23112176

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero 16-mer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ribulose bisphosphate carboxylase large chain Chain: A
Molecule details ›
Chain: A
Length: 493 amino acids
Theoretical weight: 55.11 KDa
Source organism: Galdieria sulphuraria
UniProt:
  • Canonical: P23755 (Residues: 1-493; Coverage: 100%)
Gene name: rbcL
Sequence domains:
Structure domains:
Ribulose bisphosphate carboxylase small chain Chain: B
Molecule details ›
Chain: B
Length: 138 amino acids
Theoretical weight: 16.23 KDa
Source organism: Galdieria sulphuraria
UniProt:
  • Canonical: P23756 (Residues: 1-138; Coverage: 100%)
Gene name: rbcS
Sequence domains: Ribulose bisphosphate carboxylase, small chain
Structure domains: RuBisCO, small subunit

Ligands and Environments

3 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007
Spacegroup: I422
Unit cell:
a: 136.325Å b: 136.325Å c: 121.524Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.163 0.159 0.234