PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26621242-7 2008 Hydrogen bonding interactions were observed between the atRA carboxylate group and Arg 90 in CYP26A1 and with Arg76, Arg95, and Ser369 in CYP26B1. atra carboxylate 56-72 cytochrome P450 family 26 subfamily B member 1 Homo sapiens 138-145