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Polyporopepsin

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Polyporopepsin
Identifiers
EC no. 3.4.23.29
CAS no. 61573-73-7
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NCBI proteins

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

  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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