2nze

X-ray diffraction
1.8Å resolution

Structure of beta-lactamase II from Bacillus cereus. R121H, C221S double mutant. Space group P3121.

Released:

Function and Biology Details

Reaction catalysed:
A beta-lactam + H(2)O = a substituted beta-amino acid
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
PDBe Complex ID:
PDB-CPX-137499 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Metallo-beta-lactamase type 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 222 amino acids
Theoretical weight: 24.39 KDa
Source organism: Bacillus cereus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P04190 (Residues: 36-257; Coverage: 98%)
Gene name: blm
Sequence domains: Metallo-beta-lactamase superfamily
Structure domains: Ribonuclease Z/Hydroxyacylglutathione hydrolase-like

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: LNLS BEAMLINE D03B-MX1
Spacegroup: P3121
Unit cell:
a: 66.665Å b: 66.665Å c: 175.947Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.177 0.175 0.217
Expression system: Escherichia coli BL21(DE3)