Measurement of Michaelis Constants for ATP and Mg2+ in Bioluminescence Reaction of Luciferase by a Home-Made Luminometer

Authors

  • Mohammad Reza Hadjmohammadi Institute of Chemistry, Mazandaran University, P.O. Box 311, Babolsar, I.R. IRAN
Abstract:

Effects of ATP and Mg2+ concentrations on bioluminescence reaction of luciferase (Photinus pyralis) were investigated by home-made luminometer. The Michaelis constants of the enzyme for ATP and Mg2+ obtained from the Lineweaver-Burk graph, were 61.9 mM ±3.3 mM and 251.6mM ± 39.0mM respectively. Optimum concentration of Mg2+ for maximum luminescence was 0.004 M.

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Journal title

volume 18  issue 2

pages  83- 87

publication date 1999-11-01

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