cytochrome p450 (cyp2d6) liver enzyme in complex with the drug quinine. protein: cartoon representation with secondary structure

acid amino atoms cyp2d6 cytochrome detox detoxification disease drug drugdrug effect enzyme function grapefruit health interaction liver metabolic metabolism metabolite mixed model molecular molecule oxidase oxidation oxygenase p450 pdb4wnv peptide polymer polypeptide protein quinine science scientific side structure substrate xenobiotics