title: Dynamic simulation of an in vitro multi-enzyme system.
abstract: Parameters often are tuned with metabolite concentration time series data to build a dynamic model of metabolism. However, such tuning may reduce the extrapolation ability (generalization capability) of the model. In this study, we determined detailed kinetic parameters of three purified Escherichia coli glycolytic enzymes using the initial velocity method for individual enzymes; i.e., the parameters were determined independently from metabolite concentration time series data. The metabolite concentration time series calculated by the model using the parameters matched the experimental data obtained in an actual multi-enzyme system consisting of the three purified E. coli glycolytic enzymes. Thus, the results indicate that kinetic parameters can be determined without using an undesirable tuning process.
authors.affiliation: Institute for Advanced Biosciences, Keio University, Tsuruoka 997-0035, Japan.
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Ishii
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Suga
authors.forename: Akiko
authors.initials: A
authors.lastname: Hagiya
authors.forename: Hisami
authors.initials: H
authors.lastname: Watanabe
authors.forename: Hirotada
authors.initials: H
authors.lastname: Mori
authors.forename: Masataka
authors.initials: M
authors.lastname: Yoshino
authors.forename: Masaru
authors.initials: M
authors.lastname: Tomita
mesh_terms: D004926:Escherichia coli / Q000201:enzymology; D006019:Glycolysis; D007700:Kinetics; D008954:Models, Biological; D009097:Multienzyme Complexes / Q000378:metabolism*
chemical_list: D009097:Multienzyme Complexes