3kl9

X-ray diffraction
2.7Å resolution

Crystal structure of PepA from Streptococcus pneumoniae

Released:

Function and Biology Details

Reaction catalysed:
Release of N-terminal glutamate (and to a lesser extent aspartate) from a peptide.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dodecamer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Glutamyl aminopeptidase Chains: A, B, C, D, E, F, G, H, I, J, K, L
Molecule details ›
Chains: A, B, C, D, E, F, G, H, I, J, K, L
Length: 355 amino acids
Theoretical weight: 38.15 KDa
Source organism: Streptococcus pneumoniae R6
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8DNJ7 (Residues: 1-354; Coverage: 100%)
Gene names: pepA, spr1682
Sequence domains: M42 glutamyl aminopeptidase
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE AR-NW12A
Spacegroup: P21
Unit cell:
a: 138.296Å b: 118.344Å c: 160.299Å
α: 90° β: 106.35° γ: 90°
R-values:
R R work R free
0.203 0.2 0.247
Expression system: Escherichia coli BL21(DE3)