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Kinetics of mushroom tyrosinase inhibition by quercetin

Qing-Xi Chen1, Isao Kubo

  • 1Department of Environmental Science, Policy and Management, University of California, Berkeley, California 94720-3112, USA.

Journal of Agricultural and Food Chemistry
|June 27, 2002
PubMed

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Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.
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Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
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