› 1fn0

X-ray diffraction
2Å resolution

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
Assembly name:
PDBe Complex ID:
PDB-CPX-145463 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Chymotrypsin inhibitor 3 Chain: A
Molecule details ›
Chain: A
Length: 186 amino acids
Theoretical weight: 20.68 KDa
Source organism: Psophocarpus tetragonolobus
Expression system: Escherichia coli
UniProt:
  • Canonical: P10822 (Residues: 25-207; Coverage: 100%)
Sequence domains: Trypsin and protease inhibitor
Structure domains: Trefoil (Acidic Fibroblast Growth Factor, subunit A)

Ligands and Environments

1 bound ligand:
Ligand SO4 4 x SO4
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P6122
Unit cell:
a: 61.24Å b: 61.24Å c: 210.86Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.217 0.209 0.287
Expression system: Escherichia coli

Quick links

Citations

7 citation in other articles

The ternary structure of the double-headed arrowhead protease inhibitor API-A complexed with two trypsins reveals a novel reactive site conformation.
Bao et al. (2009)
6 more