1kuu

X-ray diffraction
2.2Å resolution

CRYSTAL STRUCTURE OF METHANOBACTERIUM THERMOAUTOTROPHICUM CONSERVED PROTEIN MTH1020 REVEALS AN NTN-HYDROLASE FOLD

Released:

Function and Biology Details

Reaction catalysed:
IMP + H(2)O = 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-127874 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
IMP cyclohydrolase Chain: A
Molecule details ›
Chain: A
Length: 202 amino acids
Theoretical weight: 21.86 KDa
Source organism: Methanothermobacter
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O27099 (Residues: 1-202; Coverage: 100%)
Gene names: MTH_1020, purO
Sequence domains: IMP cyclohydrolase-like protein
Structure domains: Inosine monophosphate cyclohydrolase-like

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X8C
Spacegroup: I4122
Unit cell:
a: 107.033Å b: 107.033Å c: 87.051Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.229 0.229 0.248
Expression system: Escherichia coli BL21(DE3)