PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20696580-8 2010 The results suggested that chrysoeriol and isorhamnetin fit well into the active site of CYP1B1, but do not fit into the active site of CYP1A2 and 1A1 because of steric collisions between the methoxy substituent of these methoxyflavonoids and Ser-122 in CYP1A1 and Thr-124 in CYP1A2. 3-methylquercetin 43-55 cytochrome P450 family 1 subfamily A member 1 Homo sapiens 254-260