PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26448759-1 2015 Hyaluronan is a linear sugar polymer synthesized by three isoforms of hyaluronan synthases (HAS1, 2, and 3) that forms a hydrated scaffold around cells and is an essential component of the extracellular matrix. sugar polymer 23-36 hyaluronan synthase 1 Homo sapiens 92-106