› 5j4s

X-ray diffraction
2.1Å resolution

alpha-chymotrypsin from bovine pancreas in complex with a modified Bowman-Birk inhibitor from soybean

Released:
DOI: 10.2210/pdb5j4s/pdb
PDB entry 5j4s coloured by chain, front view.
PDB entry 5j4s coloured by chain, side view.
PDB entry 5j4s coloured by chain, top view.
Source organisms:
Primary publication:
Divergent Protein Synthesis of Bowman-Birk Protease Inhibitors, their Hydrodynamic Behavior and Co-crystallization with alpha-Chymotrypsin
Tornoee CW, Johansson E, Wahlund P-O
Synlett (2017)

Function and Biology Details

Reaction catalysed: 
Preferential cleavage: Tyr-|-Xaa, Trp-|-Xaa, Phe-|-Xaa, Leu-|-Xaa.
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-133431 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chymotrypsinogen A Chain: A
Molecule details ›
Chain: A
Length: 245 amino acids
Theoretical weight: 25.69 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P00766 (Residues: 1-245; Coverage: 100%)
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Bowman-Birk type proteinase inhibitor Chain: B
Molecule details ›
Chain: B
Length: 71 amino acids
Theoretical weight: 7.9 KDa
Source organism: Glycine max
Expression system: Not provided
UniProt:
  • Canonical: P01055 (Residues: 40-110; Coverage: 78%)
Sequence domains: Bowman-Birk serine protease inhibitor family
Structure domains: Cysteine Protease (Bromelain) Inhibitor, subunit H

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007 HF
Spacegroup: P21212
Unit cell:
a: 74.745Å b: 78.793Å c: 48.003Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.193 0.19 0.241
Expression system: Not provided

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