PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9463550-3 1998 It is known that butadiene epoxides, deriving from butadiene bioactivation by cytochrome P450-monooxygenase systems, can be enzymatically conjugated to glutathione by glutathione S-transferases. 1,3-butadiene 17-26 cytochrome P450, family 20, subfamily a, polypeptide 1 Mus musculus 78-107