3cia

X-ray diffraction
2.7Å resolution

Crystal structure of cold-aminopeptidase from Colwellia psychrerythraea

Released:

Function and Biology Details

Reaction catalysed:
Release of an N-terminal amino acid, Xaa-|-Yaa- from a peptide, amide or arylamide. Xaa is preferably Ala, but may be most amino acids including Pro (slow action). When a terminal hydrophobic residue is followed by a prolyl residue, the two may be released as an intact Xaa-Pro dipeptide.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-182147 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Aminopeptidase N Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 605 amino acids
Theoretical weight: 68.67 KDa
Source organism: Colwellia psychrerythraea 34H
Expression system: Escherichia coli
UniProt:
  • Canonical: Q7WVY1 (Residues: 25-629; Coverage: 100%)
Gene name: CPS_3470
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM30A
Spacegroup: P1
Unit cell:
a: 81.37Å b: 87.1Å c: 116.36Å
α: 88.83° β: 70.68° γ: 88.43°
R-values:
R R work R free
0.25 0.249 0.27
Expression system: Escherichia coli