2fps

X-ray diffraction
2.2Å resolution

Crystal structure of the N-terminal domain of E.coli HisB- Apo Ca model.

Released:

Function and Biology Details

Reactions catalysed:
L-histidinol phosphate + H(2)O = L-histidinol + phosphate
D-erythro-1-(imidazol-4-yl)glycerol 3-phosphate = 3-(imidazol-4-yl)-2-oxopropyl phosphate + H(2)O
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-193405 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Histidine biosynthesis bifunctional protein HisB Chains: A, B
Molecule details ›
Chains: A, B
Length: 176 amino acids
Theoretical weight: 20.07 KDa
Source organism: Escherichia coli O157:H7
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9S5G5 (Residues: 2-165; Coverage: 46%)
Gene names: ECs2823, Z3184, hisB
Sequence domains: HAD-hyrolase-like
Structure domains: HAD superfamily/HAD-like

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X8C
Spacegroup: C2221
Unit cell:
a: 52.748Å b: 131.325Å c: 104.898Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.173 0.17 0.244
Expression system: Escherichia coli BL21(DE3)