2stb

X-ray diffraction
1.8Å resolution

ANIONIC SALMON TRYPSIN IN COMPLEX WITH SQUASH SEED INHIBITOR (CUCURBITA PEPO TRYPSIN INHIBITOR II)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-145264 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Trypsin-1 Chain: E
Molecule details ›
Chain: E
Length: 222 amino acids
Theoretical weight: 23.86 KDa
Source organism: Salmo salar
UniProt:
  • Canonical: P35031 (Residues: 21-242; Coverage: 98%)
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Trypsin inhibitor 3 Chain: I
Molecule details ›
Chain: I
Length: 29 amino acids
Theoretical weight: 3.27 KDa
Source organism: Cucurbita pepo
UniProt:
  • Canonical: P10293 (Residues: 4-32; Coverage: 91%)
Sequence domains: Squash family serine protease inhibitor

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM1A
Spacegroup: P212121
Unit cell:
a: 62.3Å b: 63.4Å c: 82.5Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.176 0.176 0.201