1yx9

X-ray diffraction
3Å resolution

Effect of Dimethyl Sulphoxide on the crystal structure of Porcine Pepsin

Released:
Source organism: Sus scrofa
Primary publication:
Effect of dimethyl sulphoxide on the crystal structure of porcine pepsin.
Biochem Biophys Res Commun 331 1510-4 (2005)
PMID: 15883044

Function and Biology Details

Reaction catalysed:
Preferential cleavage: hydrophobic, preferably aromatic, residues in P1 and P1' positions. Cleaves 1-Phe-|-Val-2, 4-Gln-|-His-5, 13-Glu-|-Ala-14, 14-Ala-|-Leu-15, 15-Leu-|-Tyr-16, 16-Tyr-|-Leu-17, 23-Gly-|-Phe-24, 24-Phe-|-Phe-25 and 25-Phe-|-Tyr-26 bonds in the B chain of insulin.
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-133553 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Pepsin A Chain: A
Molecule details ›
Chain: A
Length: 326 amino acids
Theoretical weight: 34.51 KDa
Source organism: Sus scrofa
UniProt:
  • Canonical: P00791 (Residues: 60-385; Coverage: 88%)
Gene name: PGA
Sequence domains: Eukaryotic aspartyl protease
Structure domains: Acid Proteases

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ENRAF-NONIUS FR591
Spacegroup: P6522
Unit cell:
a: 67.47Å b: 67.47Å c: 290.294Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.186 0.186 0.28