The cytochrome P450 enzymes (CYPs) are the most important enzymes in the oxidative metabolism of hydrophobic drugs and other foreign compounds (xenobiotics). The versatility of these enzymes results in some unusual kinetic properties, stemming from the simultaneous interaction of multiple substrates with the CYP active site. Often, the CYPs display kinetics that deviate from standard hyperbolic saturation or inhibition kinetics. Non-Michaelis-Menten or "atypical" saturation kinetics include sigmoidal, biphasic, and substrate inhibition kinetics (see Chapter 3). Interactions between substrates include competitive inhibition, noncompetitive inhibition, mixed inhibition, partial inhibition, activation, and activation followed by inhibition (see Chapter 4). Models and equations that can result in these kinetic profiles will be presented and discussed. © Springer Science+Business Media, LLC 2014.
CITATION STYLE
Korzekwa, K. (2014). Enzyme kinetics of oxidative metabolism: Cytochromes P450. Methods in Molecular Biology, 1113, 149–166. https://doi.org/10.1007/978-1-62703-758-7_8
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