› 2ah6

X-ray diffraction
1.6Å resolution

Crystal structure of a putative cobalamin adenosyltransferase (bh1595) from bacillus halodurans c-125 at 1.60 A resolution

Released:
DOI: 10.2210/pdb2ah6/pdb
PDB entry 2ah6 coloured by chain, front view.
PDB entry 2ah6 coloured by chain, side view.
PDB entry 2ah6 coloured by chain, top view.
Source organism: Alkalihalobacillus halodurans C-125
Entry author: Joint Center for Structural Genomics (JCSG)

Function and Biology Details

Reaction catalysed: 
(1a) 2 cob(II)alamin + 2 [corrinoid adenosyltransferase] = 2 [corrinoid adenosyltransferase]-cob(II)alamin
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo trimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-191831 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Corrinoid adenosyltransferase Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 208 amino acids
Theoretical weight: 24.03 KDa
Source organism: Alkalihalobacillus halodurans C-125
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9KCH6 (Residues: 1-196; Coverage: 100%)
Gene name: BH1595
Sequence domains: Cobalamin adenosyltransferase
Structure domains: Cobalamin adenosyltransferase-like

Ligands and Environments

2 bound ligands:
Ligand NO3 3 x NO3
Ligand EDO 3 x EDO
1 modified residue:
Ligand MSE 9 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-2
Spacegroup: P212121
Unit cell:
a: 53.61Å b: 84.38Å c: 113.48Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.152 0.15 0.179
Expression system: Escherichia coli

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