Title : Differential inhibition of human CYP1A1 and CYP1A2 by quinidine and quinine.

Pub. Date : 2001 Nov

PMID : 11765139






2 Functional Relationships(s)
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1 The inhibition of recombinant CYP1A1 and CYP1A2 activity by quinidine and quinine was evluated using ethoxyresorutin O-deethylation, phenacetin O-deethylation and propranolol desisopropylation as probe catalytic pathways. Quinine cytochrome P450, family 1, subfamily a, polypeptide 1 Rattus norvegicus
2 With substrate concentrations near the Km of catalysis, both quinidine and quinine potently inhibited CYP1A1 activity with [I](0.5) approximately 1-3 microM, whereas in contrast, there was little inhibition of CYP1A2 activity. Quinine cytochrome P450, family 1, subfamily a, polypeptide 1 Rattus norvegicus