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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/390

Title: Kinetic modeling of ATP synthesis by ATP synthase and Its mechanistic implications
Authors: Nath, Sunil
Jain, Siddhartha
Keywords: ATP synthase
F1F0
kinetic model
molecular mechanism
torsional mechanism
kinetic parameters
competitive inhibition
biological implications
Issue Date: 2000
Citation: Biochemical and biophysical research communications, 272(3), 629-633
Abstract: Based on the torsional mechanism of ATP synthesis by ATP synthase, a kinetic scheme has been developed in this work. The scheme considers adenine nucleotide transport, binding of substrates ADP and Pi, unbinding of product ATP, and ATP synthesis. This kinetic scheme has been analyzed mathematically, and a kinetic model has been obtained to explain the experimentally observed hyperbolic Michaellian dependence of the rate of ATP synthesis on the ADP concentration by ATP synthase under physiological steadystate operating conditions. The principal results of the kinetic model have been compared with the experimental data and an estimate of the enzymological kinetic parameters Vmax, KM, and KI has been determined.Mechanistic implications arising from further analysis of the kinetic model have been discussed. These biological implications provide deep insight into the sequence of events leading to ATP synthesis.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/390
Appears in Collections:Biochemical Engg. and Biotechnology

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