PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16442706-1 2006 Transcriptional regulation by progesterone is mediated primarily through the two progesterone receptor (PR) isoforms, PR-A and PR-B. Progesterone 30-42 RB transcriptional corepressor 1 Homo sapiens 127-131