Article
Effect of glutathione on homo- and heterotropic cooperativity in cytochrome P450 3A4.
Archives of biochemistry and biophysics - 15 Mar 2008
Davydov Dmitri R, Davydova Nadezhda Y, Tsalkova Tamara N, Halpert James R
Abstract excerpt
Glutathione (GSH) exerted a profound effect on the oxidation of 7-benzyloxy-4-(trifluoromethyl)coumarin (BFC) and 7-benzyloxyquinoline (BQ) by human liver microsomes as well as by CYP3A4-containing insect cell microsomes (Baculosomes). The cooperativity in O-debenzylation of both substrates is eliminated in the presence of 1-4mM GSH. Addition of GSH also increased the amplitude of the 1-PB induced spin shift with...
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