PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9276335-4 1997 The SM2 isoform was up-regulated during postnatal development and the SM1 to SM2 ratio changed during pregnancy and post-partum period but not with human gonadotropin treatment which increases the level of circulating progesterone. Progesterone 218-230 SM1 Homo sapiens 70-73