X-ray diffraction
2.05Å resolution

Snapshots of serine protease catalysis: (D) acyl-enzyme intermediate between porcine pancreatic elastase and human beta-casomorphin-7 jumped to pH 10 for 2 minutes


Function and Biology Details

Reaction catalysed:
Hydrolysis of proteins, including elastin. Preferential cleavage: Ala-|-.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Chymotrypsin-like elastase family member 1 Chain: B
Molecule details ›
Chain: B
Length: 240 amino acids
Theoretical weight: 26.01 KDa
Source organism: Sus scrofa
  • Canonical: P00772 (Residues: 27-266; Coverage: 96%)
Gene names: CELA1, ELA1
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-3
Spacegroup: P212121
Unit cell:
a: 49.63Å b: 57.6Å c: 73.44Å
α: 90° β: 90° γ: 90°
R R work R free
0.199 0.199 0.246