PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16904269-4 2007 While mumol concentrations of PGI(2) are required to activate HAS1, low nmol concentrations of PGE(2) are sufficient. Epoprostenol 30-36 hyaluronan synthase 1 Homo sapiens 62-66