title: A generalized numerical approach to rapid-equilibrium enzyme kinetics: application to 17beta-HSD.
abstract: A generalized numerical treatment of rapid-equilibrium enzyme kinetics is presented. This new approach relies on automatic computer derivation of the underlying mathematical model (a system of simultaneous nonlinear algebraic equations) from a symbolic representation of the reaction mechanism (a system of biochemical equations) provided by the researcher. The method allows experimental biochemists to analyze initial-rate enzyme kinetic data without having to use any mathematical equations. An illustrative example is based on the inhibition kinetics of 17beta-hydroxysteroid dehydrogenase type 5 by a class of natural compounds. A computer implementation of the new method, a newly modified software package DYNAFIT [Kuzmic, P., 1996. Program DYNAFIT for the analysis of enzyme kinetic data: application to HIV proteinase. Anal. Biochem. 237, 260-273], is freely available to all academic researchers.
authors.affiliation: BioKin Ltd., 1652 South Grand Avenue, Suite 337, Pullman, WA 99163, USA. pksci01@biokin.com
authors.forename: Petr
authors.initials: P
authors.lastname: Kuzmic
mesh_terms: D015067:17-Hydroxysteroid Dehydrogenases / Q000037:antagonists & inhibitors*; D015096:3-Hydroxysteroid Dehydrogenases; D000074425:Aldo-Keto Reductase Family 1 Member C3; D019295:Computational Biology / Q000379:methods*; D003198:Computer Simulation; D004791:Enzyme Inhibitors / Q000494:pharmacology*; D006801:Humans; D006911:Hydroxyprostaglandin Dehydrogenases; D007700:Kinetics; D008958:Models, Molecular; D048789:Phytoestrogens / Q000494:pharmacology*; D012984:Software
chemical_list: D004791:Enzyme Inhibitors; D048789:Phytoestrogens; D015067:17-Hydroxysteroid Dehydrogenases; D015096:3-Hydroxysteroid Dehydrogenases; D006911:Hydroxyprostaglandin Dehydrogenases; C487341:AKR1C3 protein, human; D000074425:Aldo-Keto Reductase Family 1 Member C3