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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Quantitative structure-activity relationships (QSARs) for inhibitors and substrates of CYP2B enzymes: importance of compound lipophilicity in explanation of potency differences.

The results of quantitative structure-activity relationship (QSAR) studies on inhibitors and substrates of cytochrome P450 2B (CYP2B) subfamily enzymes are reported. It was found that lipophilicity (in the form of log P) is the most important property for explaining the variations in inhibitory activity, and there are similarities between QSARs for both substrates and inhibitors for CYP2B6 (human), and also between those of other CYP2B enzymes, such as CYP2B1 (rat) and CYP2B4 (rabbit). Both linear and quadratic lipophilicity relationships are evidenced in human and other mammalian species, and the particular type of expression found is probably due to the nature of the compounds under investigation, as it is usually the homologous series which tend to show quadratic relationships in log P. The findings from QSAR studies can be rationalized by molecular modelling of the active site interactions with both P450 crystal structures and homology models of CYP2B subfamily enzymes.[1]

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