› 6pq8

X-ray diffraction
2.2Å resolution

Crystal structure of TLA-1 S70G extended spectrum Beta-lactamase in complex with clavulanic acid

Released:
DOI: 10.2210/pdb6pq8/pdb
PDB entry 6pq8 coloured by chain, front view.
PDB entry 6pq8 coloured by chain, side view.
PDB entry 6pq8 coloured by chain, top view.
Source organism: Escherichia coli
Primary publication:
The crystal structure of ESBL TLA-1 in complex with clavulanic acid reveals a second acylation site.
Cifuentes-Castro V, Rodríguez-Almazán C, Silva-Sánchez J, Rudiño-Piñera E
Biochem Biophys Res Commun 522 545-551 (2020)
PMID: 31780261

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-194953 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Beta-lactamase Chain: A
Molecule details ›
Chain: A
Length: 299 amino acids
Theoretical weight: 33.34 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9X6W1 (Residues: 14-312; Coverage: 99%)
Gene name: tla-1
Sequence domains: Beta-lactamase enzyme family

Ligands and Environments

6 bound ligands:
Ligand ASP 1 x ASP
Ligand J01 1 x J01
Ligand ACT 8 x ACT
Ligand GOL 2 x GOL
Ligand SO4 4 x SO4
Ligand CL 1 x CL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-BM
Spacegroup: P41212
Unit cell:
a: 99.41Å b: 99.41Å c: 99.47Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.186 0.184 0.226
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

2 review citations

Extended Spectrum Beta-Lactamase (ESBL) Produced by Gram-Negative Bacteria in Trinidad and Tobago.
Akpaka et al. (2021)
1 more

2 mentions without citation

Foamy Viruses, Bet, and APOBEC3 Restriction.
Jaguva Vasudevan et al. (2021)
1 more