4j2y

X-ray diffraction
2Å resolution

Crystal structure of a plant trypsin inhibitor EcTI in complex with bovine trypsin.

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-133341 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Trypsin inhibitor Chain: A
Molecule details ›
Chain: A
Length: 176 amino acids
Theoretical weight: 19.87 KDa
Source organism: Enterolobium contortisiliquum
UniProt:
  • Canonical: P86451 (Residues: 1-101, 102-113, 114-174; Coverage: 100%)
Sequence domains: Trypsin and protease inhibitor
Structure domains: Trefoil (Acidic Fibroblast Growth Factor, subunit A)
Serine protease 1 Chain: B
Molecule details ›
Chain: B
Length: 223 amino acids
Theoretical weight: 23.32 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P00760 (Residues: 24-246; Coverage: 97%)
Gene names: PRSS1, TRP1, TRY1, TRYP1
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: C2
Unit cell:
a: 73.26Å b: 38.582Å c: 122.817Å
α: 90° β: 104.19° γ: 90°
R-values:
R R work R free
0.198 0.196 0.258