4an7

X-ray diffraction
2.23Å resolution

Kunitz type trypsin inhibitor complex with porcine trypsin

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-123535 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Trypsin Chain: A
Molecule details ›
Chain: A
Length: 231 amino acids
Theoretical weight: 24.43 KDa
Source organism: Sus scrofa
UniProt:
  • Canonical: P00761 (Residues: 1-231; Coverage: 100%)
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Trypsin inhibitor Chain: B
Molecule details ›
Chain: B
Length: 185 amino acids
Theoretical weight: 20.6 KDa
Source organism: Tamarindus indica
UniProt:
  • Canonical: F4ZZG4 (Residues: 1-185; Coverage: 100%)
Sequence domains: Trypsin and protease inhibitor
Structure domains: Trefoil (Acidic Fibroblast Growth Factor, subunit A)

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BRUKER AXS MICROSTAR-H
Unit cell:
a: 61.084Å b: 67.12Å c: 91.612Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.202 0.2 0.246