› 4qne

X-ray diffraction
2.32Å resolution

Inosine 5'-monophosphate dehydrogenase from Vibrio cholerae, deletion mutant, in complex with NAD and IMP

Released:
DOI: 10.2210/pdb4qne/pdb
PDB entry 4qne coloured by chain, front view.
PDB entry 4qne coloured by chain, side view.
PDB entry 4qne coloured by chain, top view.
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Entry authors: Osipiuk J, Maltseva N, Makowska-Grzyska M, Gu M, Anderson WF, Joachimiak A, Center for Structural Genomics of Infectious Diseases (CSGID)

Function and Biology Details

Reaction catalysed: 
Inosine 5'-phosphate + NAD(+) + H(2)O = xanthosine 5'-phosphate + NADH
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo octamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-192100 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Inosine-5'-monophosphate dehydrogenase Chains: A, B
Molecule details ›
Chains: A, B
Length: 366 amino acids
Theoretical weight: 38.25 KDa
Source organism: Vibrio cholerae O1 biovar El Tor str. N16961
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9KTW3 (Residues: 1-90, 220-489; Coverage: 74%)
Gene names: VC_0767, guaB
Sequence domains: IMP dehydrogenase / GMP reductase domain
Structure domains: Aldolase class I

Ligands and Environments


Cofactor: Ligand NAJ 2 x NAJ
2 bound ligands:
Ligand IMP 2 x IMP
Ligand K 2 x K
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-BM
Spacegroup: P4212
Unit cell:
a: 121.334Å b: 121.334Å c: 94.47Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.2 0.196 0.27
Expression system: Escherichia coli BL21(DE3)

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