1lw6

X-ray diffraction
1.5Å resolution

Crystal Structure of the Complex of Subtilisin BPN' with Chymotrypsin Inhibitor 2 at 1.5 Angstrom Resolution

Released:
Primary publication:
A clogged gutter mechanism for protease inhibitors.
Proc Natl Acad Sci U S A 99 10316-21 (2002)
PMID: 12142461

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-133533 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Subtilisin BPN' Chain: E
Molecule details ›
Chain: E
Length: 281 amino acids
Theoretical weight: 28.38 KDa
Source organism: Bacillus amyloliquefaciens
Expression system: Bacillus subtilis
UniProt:
  • Canonical: P00782 (Residues: 108-382; Coverage: 78%)
Gene name: apr
Sequence domains: Subtilase family
Structure domains: Peptidase S8/S53 domain
Subtilisin-chymotrypsin inhibitor-2A Chain: I
Molecule details ›
Chain: I
Length: 64 amino acids
Theoretical weight: 7.26 KDa
Source organism: Hordeum vulgare
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P01053 (Residues: 21-84; Coverage: 76%)
Sequence domains: Potato inhibitor I family
Structure domains: Trypsin Inhibitor V, subunit A

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.1
Spacegroup: P212121
Unit cell:
a: 54.332Å b: 56.597Å c: 118.635Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.17 0.169 0.188
Expression systems:
  • Bacillus subtilis
  • Escherichia coli BL21(DE3)