X-ray diffraction
1.8Å resolution

CTX-M-9 beta lactamase mutant - T165W


Function and Biology Details

Reaction catalysed:
A beta-lactam + H(2)O = a substituted beta-amino acid
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Beta-lactamase Chain: A
Molecule details ›
Chain: A
Length: 290 amino acids
Theoretical weight: 30.97 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
  • Canonical: Q9L5C8 (Residues: 2-2, 4-291; Coverage: 100%)
Gene names: RCS51_P0174, bla CTX-M-9, blaCTX-M-9, blaCTX-M-9a, blaCTX-M-9b
Sequence domains: Beta-lactamase enzyme family
Structure domains: DD-peptidase/beta-lactamase superfamily

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P21
Unit cell:
a: 42.743Å b: 42.212Å c: 68.035Å
α: 90° β: 104.52° γ: 90°
R R work R free
0.161 0.159 0.184
Expression system: Escherichia coli