6m28

X-ray diffraction
3Å resolution

Sirohydrochlorin nickelochelatase CfbA in complex with Co2+

Released:

Function and Biology Details

Reactions catalysed:
Ni-sirohydrochlorin + 2 H(+) = sirohydrochlorin + Ni(2+)
Cobalt-precorrin-2 + 2 H(+) = precorrin-2 + Co(2+)
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-176610 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Sirohydrochlorin cobaltochelatase Chains: A, B
Molecule details ›
Chains: A, B
Length: 143 amino acids
Theoretical weight: 16.55 KDa
Source organism: Methanocaldococcus jannaschii DSM 2661
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q58380 (Residues: 1-143; Coverage: 100%)
Gene names: MJ0970, cbiX, cfbA
Sequence domains: CbiX

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL44XU
Spacegroup: P41
Unit cell:
a: 68.06Å b: 68.06Å c: 82.08Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.186 0.184 0.237
Expression system: Escherichia coli BL21(DE3)