1oyv

X-ray diffraction
2.5Å resolution

Crystal structure of tomato inhibitor-II in a ternary complex with subtilisin Carlsberg

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of proteins with broad specificity for peptide bonds, and a preference for a large uncharged residue in P1. Hydrolyzes peptide amides.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-133528 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Subtilisin Carlsberg Chains: A, B
Molecule details ›
Chains: A, B
Length: 274 amino acids
Theoretical weight: 27.31 KDa
Source organism: Bacillus licheniformis
UniProt:
  • Canonical: P00780 (Residues: 106-379; Coverage: 78%)
Gene names: apr, subC
Sequence domains: Subtilase family
Structure domains: Peptidase S8/S53 domain
Wound-induced proteinase inhibitor 2 Chain: I
Molecule details ›
Chain: I
Length: 123 amino acids
Theoretical weight: 13.47 KDa
Source organism: Solanum lycopersicum
UniProt:
  • Canonical: P05119 (Residues: 26-148; Coverage: 100%)
Sequence domains: Potato type II proteinase inhibitor family
Structure domains: Wheat Germ Agglutinin (Isolectin 2); domain 1

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL7-1
Spacegroup: C2
Unit cell:
a: 154.971Å b: 55.099Å c: 91.338Å
α: 90° β: 119.54° γ: 90°
R-values:
R R work R free
0.22 0.214 0.27