PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15546903-3 2005 CYP3A4, a vitamin D-25-hydroxylase, and CYP1A1 had the highest 24-hydroxylase activity with 1 alpha-hydroxyvitamin D(2) (1 alpha OHD(2)) as substrate. alpha-hydroxyvitamin d 94-116 cytochrome P450 family 2 subfamily R member 1 Homo sapiens 10-34