2ajb

X-ray diffraction
2.75Å resolution

Porcine dipeptidyl peptidase IV (CD26) in complex with the tripeptide tert-butyl-Gly-L-Pro-L-Ile (tBu-GPI)

Released:

Function and Biology Details

Reaction catalysed:
Release of an N-terminal dipeptide, Xaa-Yaa-|-Zaa-, from a polypeptide, preferentially when Yaa is Pro, provided Zaa is neither Pro nor hydroxyproline.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
Assembly name:
PDBe Complex ID:
PDB-CPX-149624 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (3 distinct):
Dipeptidyl peptidase 4 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 728 amino acids
Theoretical weight: 84.43 KDa
Source organism: Sus scrofa
UniProt:
  • Canonical: P22411 (Residues: 39-766; Coverage: 95%)
Gene names: CD26, DPP4
Sequence domains:
Structure domains:

Ligands and Environments

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

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: P1
Unit cell:
a: 62.3Å b: 118.5Å c: 133.53Å
α: 112.67° β: 94.94° γ: 91.02°
R-values:
R R work R free
0.198 0.198 0.27