1cgi

X-ray diffraction
2.3Å resolution

THREE-DIMENSIONAL STRUCTURE OF THE COMPLEXES BETWEEN BOVINE CHYMOTRYPSINOGEN*A AND TWO RECOMBINANT VARIANTS OF HUMAN PANCREATIC SECRETORY TRYPSIN INHIBITOR (KAZAL-TYPE)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-133429 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chymotrypsinogen A Chain: E
Molecule details ›
Chain: E
Length: 245 amino acids
Theoretical weight: 25.69 KDa
Source organism: Bos taurus
Expression system: Not provided
UniProt:
  • Canonical: P00766 (Residues: 1-245; Coverage: 100%)
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Serine protease inhibitor Kazal-type 1 Chain: I
Molecule details ›
Chain: I
Length: 56 amino acids
Theoretical weight: 6.35 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P00995 (Residues: 24-79; Coverage: 100%)
Gene names: PSTI, SPINK1
Sequence domains: Kazal-type serine protease inhibitor domain
Structure domains: Wheat Germ Agglutinin (Isolectin 2); domain 1

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P41212
Unit cell:
a: 84.4Å b: 84.4Å c: 86.7Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.195 not available not available
Expression system: Not provided