PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1122885-1 1975 Delta5,3beta-Hydroxysteroid dehydrogenase (3beta-HSD) activity has been measured in homogenates of ovary and trophoblast from 9th to 21st day pregnant rats under conditions where there was little or no further metabolism of the progesterone formed from pregnenolone. Progesterone 228-240 hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1 Rattus norvegicus 43-52