Wikipedia
Cerevisin
Cerevisin (, yeast proteinase B, proteinase yscB, baker's yeast proteinase B, brewer's yeast proteinase, peptidase beta) is an enzyme. This enzyme catalyses the following chemical reaction
Hydrolysis of proteins with broad specificity, and of Bz-Arg-OEt Ac-Tyr-OEt. Does not hydrolyse peptide amidesThis enzyme is isolated from Saccharomyces cerevisiae (baker's yeast).