PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17632548-5 2007 LTC4S conjugates glutathione to LTA4, the endogenous substrate derived from arachidonic acid through the 5-lipoxygenase pathway. Arachidonic Acid 76-92 leukotriene C4 synthase Homo sapiens 0-5