PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 194012-2 1977 As in liver, cytochrome P-450 in brain is degraded in vitro to its inactive form, cytochrome P-420 by methylmercury chloride. Chlorides 116-124 cytochrome P450, family 2, subfamily g, polypeptide 1 Rattus norvegicus 13-29