X-ray diffraction
1.7Å resolution

Crystal Structure of the E.coli pyrimidine nucleoside hydrolase yeiK


Function and Biology Details

Reaction catalysed:
A pyrimidine nucleoside + H(2)O = D-ribose + a pyrimidine base
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Pyrimidine-specific ribonucleoside hydrolase RihB Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 313 amino acids
Theoretical weight: 33.76 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P33022 (Residues: 1-313; Coverage: 100%)
Gene names: JW2149, b2162, rihB, yeiK
Sequence domains: Inosine-uridine preferring nucleoside hydrolase
Structure domains: Ribonucleoside hydrolase-like

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P1
Unit cell:
a: 44.808Å b: 85.707Å c: 90.678Å
α: 112.95° β: 101.95° γ: 85.92°
R R work R free
0.153 0.153 0.17
Expression system: Escherichia coli BL21(DE3)