PDBe 4wxv

X-ray diffraction
2.1Å resolution

Human cationic trypsin K97D mutant in complex with bovine pancreatic trypsin inhibitor (BPTI)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Trypsin-1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 224 amino acids
Theoretical weight: 24.09 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P07477 (Residues: 24-247; Coverage: 97%)
Gene names: PRSS1, TRP1, TRY1, TRYP1
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Pancreatic trypsin inhibitor Chains: C, I
Molecule details ›
Chains: C, I
Length: 55 amino acids
Theoretical weight: 6.34 KDa
Source organism: Bos taurus
Expression system: Komagataella pastoris
UniProt:
  • Canonical: P00974 (Residues: 36-90; Coverage: 70%)
Structure domains: Pancreatic trypsin inhibitor Kunitz domain

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P212121
Unit cell:
a: 42.853Å b: 56.575Å c: 228.58Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.219 0.216 0.281
Expression systems:
  • Escherichia coli BL21(DE3)
  • Komagataella pastoris