PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6541733-5 1984 The reduction of 5 alpha-pregnane-3,20-dione at C-3 followed by a 6 alpha-hydroxylation can be postulated as the major, if not the only, metabolic pathway. 5-alpha-Dihydroprogesterone 17-44 complement C3 Rattus norvegicus 48-51