4fyt

X-ray diffraction
1.85Å resolution

Human aminopeptidase N (CD13) in complex with amastatin

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:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-147238 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
Aminopeptidase N Chain: A
Molecule details ›
Chain: A
Length: 903 amino acids
Theoretical weight: 103.25 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P15144 (Residues: 66-967; Coverage: 93%)
Gene names: ANPEP, APN, CD13, PEPN
Sequence domains:
Structure domains:
AMASTATIN Chain: B
Molecule details ›
Chain: B
Length: 4 amino acids
Theoretical weight: 475 Da
Source organism: Streptomyces sp. ME98-M3
Expression system: Not provided

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CLSI BEAMLINE 08ID-1
Spacegroup: P64
Unit cell:
a: 157.47Å b: 157.47Å c: 115.13Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.17 0.169 0.183
Expression systems:
  • Homo sapiens
  • Not provided