PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2125561-6 1990 The reduced mutagenicity of AFB1 correlates with the decrease in the amount of 2 alpha-hydroxytestosterone formed when testosterone was incubated with parenchymal cell microsomes from Aroclor 1254-pretreated rats (compared with microsomes from untreated animals): the formation of 2 alpha-hydroxytestosterone is specifically catalyzed by cytochrome P-450h, a hemoprotein thought to be involved in the activation of AFB1. Aflatoxin B1 28-32 cytochrome P450, subfamily 2, polypeptide 11 Rattus norvegicus 338-355