Abstract
The paper reports a study of the kinetics of the reaction between phosphoenolpyruvate, ADP and Mg(2+) catalysed by rabbit muscle pyruvate kinase. The experimental results indicate that the reaction mechanism is equilibrium random-order in type, that the substrates and products are phosphoenolpyruvate, ADP, Mg(2+), pyruvate and MgATP, and that dead-end complexes, between pyruvate, ADP and Mg(2+), form randomly and exist in equilibrium with themselves and other substrate complexes. Values were determined for the Michaelis, dissociation and inhibition constants of the reaction and are compared with values ascertained by previous workers.
MeSH Terms
Adenosine Diphosphate
Animals
Binding Sites
Chromatography, Gel
Chromatography, Ion Exchange
Computers
Kinetics
Magnesium
Mathematics
Models, Biological
Muscles/enzymology
Phosphoenolpyruvate
Protein Binding
Pyruvate Kinase/metabolism
Rabbits
Spectrophotometry, Ultraviolet
Chemicals
Adenosine Diphosphate
Phosphoenolpyruvate
Pyruvate Kinase
Magnesium
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Ainsworth S
MacFarlane N
References (28)
28 references, click to expand
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