4oel

X-ray diffraction
1.4Å resolution

Crystal structure of Cathepsin C in complex with dipeptide substrates

Released:

Function and Biology Details

Reaction catalysed:
Release of an N-terminal dipeptide, Xaa-Yaa-|-Zaa-, except when Xaa is Arg or Lys, or Yaa or Zaa is Pro.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
hetero tetramer (preferred)
hetero octamer
PDBe Complex ID:
PDB-CPX-156842 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Dipeptidyl peptidase 1 heavy chain Chain: A
Molecule details ›
Chain: A
Length: 370 amino acids
Theoretical weight: 42.04 KDa
Source organism: Homo sapiens
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P53634 (Residues: 25-394; Coverage: 84%)
Gene names: CPPI, CTSC
Sequence domains:
Structure domains:
Dipeptidyl peptidase 1 light chain Chain: B
Molecule details ›
Chain: B
Length: 70 amino acids
Theoretical weight: 7.71 KDa
Source organism: Homo sapiens
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P53634 (Residues: 395-463; Coverage: 16%)
Gene names: CPPI, CTSC
Structure domains: Cysteine proteinases. Chain C

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: I222
Unit cell:
a: 85.52Å b: 89.258Å c: 115.342Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.182 0.181 0.198
Expression system: Cricetulus griseus