PDBe 2b5r

X-ray diffraction
1.65Å resolution

1B Lactamase / B Lactamase Inhibitor


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Beta-lactamase TEM Chains: A, B
Molecule details ›
Chains: A, B
Length: 263 amino acids
Theoretical weight: 28.94 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
  • Canonical: P62593 (Residues: 24-286; Coverage: 100%)
Gene names: bla, blaT-3, blaT-4, blaT-5, blaT-6
Sequence domains: Beta-lactamase enzyme family
Structure domains: DD-peptidase/beta-lactamase superfamily
Beta-lactamase inhibitory protein Chains: C, D
Molecule details ›
Chains: C, D
Length: 165 amino acids
Theoretical weight: 17.56 KDa
Source organism: Streptomyces clavuligerus
Expression system: Escherichia coli
  • Canonical: P35804 (Residues: 37-201; Coverage: 100%)
Sequence domains: Beta-lactamase inhibitor (BLIP)
Structure domains: Beta-lactamase Inhibitory Protein; Chain:B, domain 1

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P212121
Unit cell:
a: 45.799Å b: 124.473Å c: 157.256Å
α: 90° β: 90° γ: 90°
R R work R free
0.19 0.19 0.222
Expression system: Escherichia coli