1scj

X-ray diffraction
2Å resolution

CRYSTAL STRUCTURE OF SUBTILISIN-PROPEPTIDE COMPLEX

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:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-137497 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Subtilisin E Chain: A
Molecule details ›
Chain: A
Length: 275 amino acids
Theoretical weight: 27.75 KDa
Source organism: Bacillus subtilis
Expression system: Escherichia coli
UniProt:
  • Canonical: P04189 (Residues: 107-381; Coverage: 78%)
Gene names: BSU10300, apr, aprA, aprE, sprE
Sequence domains: Subtilase family
Structure domains: Peptidase S8/S53 domain
Subtilisin E Chain: B
Molecule details ›
Chain: B
Length: 71 amino acids
Theoretical weight: 7.98 KDa
Source organism: Bacillus subtilis
Expression system: Escherichia coli
UniProt:
  • Canonical: P04189 (Residues: 36-106; Coverage: 20%)
Gene names: BSU10300, apr, aprA, aprE, sprE
Sequence domains: Peptidase inhibitor I9
Structure domains: Peptidase S8 propeptide/proteinase inhibitor I9

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH2R
Spacegroup: P21212
Unit cell:
a: 73.544Å b: 92.21Å c: 47.415Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.173 0.173 0.22
Expression system: Escherichia coli