6a4r

X-ray diffraction
1.83Å resolution

Crystal structure of aspartate bound peptidase E from Salmonella enterica

Released:

Function and Biology Details

Reaction catalysed:
Dipeptidase E catalyzes the hydrolysis of dipeptides Asp-|-Xaa. It does not act on peptides with N-terminal Glu, Asn or Gln, nor does it cleave isoaspartyl peptides.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-153263 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Peptidase E Chains: A, B
Molecule details ›
Chains: A, B
Length: 265 amino acids
Theoretical weight: 28.6 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P36936 (Residues: 2-229; Coverage: 100%)
Gene names: STM4190, pepE
Sequence domains: Peptidase family S51
Structure domains: Rossmann fold

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RRCAT INDUS-2 BEAMLINE PX-BL21
Spacegroup: P21
Unit cell:
a: 67.155Å b: 42.889Å c: 89.29Å
α: 90° β: 107.02° γ: 90°
R-values:
R R work R free
0.19 0.189 0.213
Expression system: Escherichia coli BL21(DE3)