3t6b

X-ray diffraction
2.4Å resolution

Structure of human DPPIII in complex with the opioid peptide Tynorphin, at 2.4 Angstroms

Released:

Function and Biology Details

Reaction catalysed:
Release of an N-terminal dipeptide from a peptide comprising four or more residues, with broad specificity. Also acts on dipeptidyl 2-naphthylamides.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-164065 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Dipeptidyl peptidase 3 Chains: A, B
Molecule details ›
Chains: A, B
Length: 726 amino acids
Theoretical weight: 81.61 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9NY33 (Residues: 1-726; Coverage: 99%)
Gene name: DPP3
Sequence domains: Peptidase family M49
Structure domains:
Tynorphin Chains: C, D
Molecule details ›
Chains: C, D
Length: 5 amino acids
Theoretical weight: 663 Da
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P21
Unit cell:
a: 61.97Å b: 107.55Å c: 119.1Å
α: 90° β: 90.67° γ: 90°
R-values:
R R work R free
0.2 0.197 0.258
Expression systems:
  • Escherichia coli
  • Not provided