Autor: M. I. Youshko, Vytas K. Švedas, A. L. Bukhanov
Rok vydání: 2003
Předmět:
Zdroj: Biochemistry (Moscow). 68:334-338
ISSN: 0006-2979
DOI: 10.1023/a:1023014519139
Popis: The influence of the external nucleophile (6-aminopenicillanic acid) on the kinetics of the penicillin acylase-catalyzed acyl transfer reactions was studied using a highly sensitive spectrophotometric assay. An adequate kinetic scheme is suggested based on kinetic analysis of the experimental dependencies of the kcat and Km values on the nucleophile concentration. The proposed kinetic scheme has been verified by a quantitative description of the above-mentioned experimental dependencies using the set of kinetic parameters obtained from independent experiments. Such an approach can be used for modeling of different penicillin acylase-catalyzed acyl transfer reactions.
Databáze: OpenAIRE