Title : Cynomolgus monkey CYP2D44 newly identified in liver, metabolizes bufuralol, and dextromethorphan.

Pub. Date : 2010 Sep

PMID : 20501912






3 Functional Relationships(s)
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1 Metabolic assays of the CYP2D17 and CYP2D44 proteins heterologously expressed in Escherichia coli indicated that CYP2D44 metabolized human CYP2D6 substrates, bufuralol and dextromethorphan (bufuralol 1"-hydroxylation and dextromethorphan O-demethylation) but to a lesser extent than CYP2D17. Dextromethorphan cytochrome P450 family 2 subfamily D member 6 Homo sapiens
2 Metabolic assays of the CYP2D17 and CYP2D44 proteins heterologously expressed in Escherichia coli indicated that CYP2D44 metabolized human CYP2D6 substrates, bufuralol and dextromethorphan (bufuralol 1"-hydroxylation and dextromethorphan O-demethylation) but to a lesser extent than CYP2D17. Dextromethorphan cytochrome P450 family 2 subfamily D member 6 Homo sapiens
3 Kinetic analysis of dextromethorphan metabolism indicated that the apparent K(m) and V(max) of CYP2D17 and CYP2D44 catalyzed O-demethylation were similar, and, the V(max) values of CYP2D17 and CYP2D44 catalyzed N-demethylation (which human CYP2D6 catalyzes much less effectively) were similar, but the apparent K(m) of the CYP2D44 reaction was higher. Dextromethorphan cytochrome P450 family 2 subfamily D member 6 Homo sapiens