Polyporopepsin

Polyporopepsin (EC 3.4.23.29, Polyporus aspartic proteinase, Irpex lacteus aspartic proteinase, Irpex lacteus carboxyl proteinase B) is an enzyme.[1][2] This enzyme catalyses the following chemical reaction

Milk clotting activity, broad specificity, but fails to cleave Leu15-Tyr or Tyr16-Leu of insulin B chain
Polyporopepsin
Identifiers
EC number3.4.23.29
CAS number61573-73-7
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

This enzyme is isolated from the basidiomycete Polyporus tulipiferae.

References

  1. Kobayashi H, Kusakabe I, Murakami K (1983). "Substrate specificity of a carboxyl proteinase from Irpex lacteus". Agric. Biol. Chem. 47 (8): 1921–1923. doi:10.1271/bbb1961.47.1921.
  2. Kobayashi H, Sekibata S, Shibuya H, Yoshida S, Kusakabe I, Murakami K (1989). "Cloning and sequence analysis of cDNA for Irpex lacteus aspartic proteinase". Agric. Biol. Chem. 53 (7): 1927–1933. doi:10.1271/bbb1961.53.1927.
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