2zc5

X-ray diffraction
3Å resolution

Penicillin-binding protein 1A (PBP 1A) acyl-enzyme complex (biapenem) from Streptococcus pneumoniae

Released:

Function and Biology Details

Reaction catalysed:
Preferential cleavage: (Ac)(2)-L-Lys-D-Ala-|-D-Ala. Also transpeptidation of peptidyl-alanyl moieties that are N-acyl substituents of D-alanine.
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-170056 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Penicillin-binding protein 1A Chains: A, C
Molecule details ›
Chains: A, C
Length: 24 amino acids
Theoretical weight: 2.64 KDa
Source organism: Streptococcus pneumoniae TIGR4
Expression system: Escherichia coli
UniProt:
  • Canonical: Q04707 (Residues: 47-70; Coverage: 3%)
Gene names: SP_0369, ponA
Penicillin-binding protein 1A Chains: B, D
Molecule details ›
Chains: B, D
Length: 390 amino acids
Theoretical weight: 43.57 KDa
Source organism: Streptococcus pneumoniae TIGR4
Expression system: Escherichia coli
UniProt:
  • Canonical: Q04707 (Residues: 264-653; Coverage: 54%)
Gene names: SP_0369, ponA
Sequence domains: Penicillin binding protein transpeptidase domain
Structure domains: DD-peptidase/beta-lactamase superfamily

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: P21212
Unit cell:
a: 185.704Å b: 50.665Å c: 110.784Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.224 0.222 0.276
Expression system: Escherichia coli