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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

By-product analogues for bovine carboxypeptidase B.

A series of monocarboxylic and dicarboxylic acid sulfur-containing by-product analogues of lysine and arginine has been synthesized and tested as competitive inhibitors of bovine carboxypeptidase B. The most effective derivatives were guanidinoethylmercaptosuccinic acid and aminopropylmer-captosuccinic acid with Kis of 4 and 8 X 10(-6) M, respectively. Kinetics studies established the pure competitive nature of the inhibition. Mixed studies with the alkylating reagents bromoacetyl-D-arginine and bromoacetamidobutylguanidine established their efficiency in protecting the active-center glutamic acid and tyrosine of bovine carboxypeptidase B, respectively, from irreversible alkylation. Kinetic studies with bovine carboxypeptidase A and porcine carboxypeptidase B showed a lack of efficiency for A and high degree of efficiency for B.[1]


  1. By-product analogues for bovine carboxypeptidase B. McKay, T.J., Plummer, T.H. Biochemistry (1978) [Pubmed]
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