2v3y

X-ray diffraction
1.6Å resolution

His361Ala Escherichia coli aminopeptidase P in complex with product

Released:
Source organism: Escherichia coli
Primary publication:
Complexes of mutants of Escherichia coli aminopeptidase P and the tripeptide substrate ValProLeu.
Arch Biochem Biophys 469 200-8 (2008)
PMID: 17983589

Function and Biology Details

Reaction catalysed:
Release of any N-terminal amino acid, including proline, that is linked to proline, even from a dipeptide or tripeptide.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
PDBe Complex ID:
PDB-CPX-147186 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Xaa-Pro aminopeptidase Chain: A
Molecule details ›
Chain: A
Length: 440 amino acids
Theoretical weight: 49.69 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P15034 (Residues: 2-441; Coverage: 100%)
Gene names: JW2876, b2908, pepP
Sequence domains:
Structure domains:
TRIPEPTIDE (VALINE-PROLINE-LEUCINE) Chain: B
Molecule details ›
Chain: B
Length: 3 amino acids
Theoretical weight: 327 Da
Source organism: Escherichia coli
Expression system: Not provided

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200H
Spacegroup: P6422
Unit cell:
a: 177.132Å b: 177.132Å c: 96.17Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.154 0.154 0.167
Expression systems:
  • Escherichia coli
  • Not provided