Polyporopepsin, also called Polyporus aspartic proteinase, Irpex lacteus aspartic proteinase or Irpex lacteus carboxyl proteinase B, is an enzyme found in the fungus Irpex lacteus.[1][2] It catalyses the following chemical reaction:
- Milk clotting activity, broad specificity, but fails to cleave Leu15-Tyr or Tyr16-Leu of insulin B chain.
Irpex lacteus is a basidiomycete also known as Polyporus tulipiferae.
References
- ^ 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.
- ^ 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.
External links
- Polyporopepsin at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
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