specificity constant

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spec·i·fic·i·ty con·stant

ratio of the maximum velocity (Vmax) or kcat to the true Km value for a specific substrate in an enzyme-catalyzed reaction.
References in periodicals archive ?
BNP (1-32) had a higher specificity constant than glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide, and several chemokines, peptides for which the in vivo relevance of truncation by DPP IV has been well documented (15).
An increase in investment, holding the degree of asset specificity constant, is expected to increase the royalty rate.
In the second section of the text they describe the application of substrate-inhibitor specificity for calculation of inhibitor selectivity toward different enzymes for identification of reversible and irreversible inhibitors, as well as the use of specificity constants for molecular phylogenetic analysis of the active center of cholinesterases and esterases.