› 4jlf

X-ray diffraction
2.1Å resolution

Inhibitor resistant (R220A) substitution in the Mycobacterium tuberculosis beta-lactamase

Released:
DOI: 10.2210/pdb4jlf/pdb
PDB entry 4jlf coloured by chain, front view.
PDB entry 4jlf coloured by chain, side view.
PDB entry 4jlf coloured by chain, top view.
Source organism: Mycobacterium tuberculosis
Primary publication:
Can inhibitor-resistant substitutions in the Mycobacterium tuberculosis β-Lactamase BlaC lead to clavulanate resistance?: a biochemical rationale for the use of β-lactam-β-lactamase inhibitor combinations.
Kurz SG, Wolff KA, Hazra S, Bethel CR, Hujer AM, Smith KM, Xu Y, Tremblay LW, Blanchard JS, Nguyen L, Bonomo RA
Antimicrob Agents Chemother 57 6085-96 (2013)
PMID: 24060876

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-161732 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Beta-lactamase Chain: A
Molecule details ›
Chain: A
Length: 265 amino acids
Theoretical weight: 28.19 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Escherichia coli
UniProt:
  • Canonical: P9WKD3 (Residues: 43-307; Coverage: 97%)
Gene names: MTCY49.07c, Rv2068c, blaA, blaC
Sequence domains:
Structure domains: DD-peptidase/beta-lactamase superfamily

Ligands and Environments

1 bound ligand:
Ligand PO4 5 x PO4
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P212121
Unit cell:
a: 49.41Å b: 67.427Å c: 74.634Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.134 0.134 0.187
Expression system: Escherichia coli

Quick links

Citations

4 review citations

β-Lactam Resistance Mechanisms: Gram-Positive Bacteria and Mycobacterium tuberculosis.
Fisher et al. (2016)
3 more

2 mentions without citation

Can inhibitor-resistant substitutions in the Mycobacterium tuberculosis β-Lactamase BlaC lead to clavulanate resistance?: a biochemical rationale for the use of β-lactam-β-lactamase inhibitor combinations.
Kurz et al. (2013)
1 more