PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2116167-5 1990 Phosphatidylethanolamine or stearylamine, having a positively charged group, reduced the catalytic efficiency of t-PA by raising its Km value (10-fold), whereas negatively charged phospholipids, phosphatidylserine and phosphatidylinositol, did not affect the efficiency. stearylamine 28-40 plasminogen activator, tissue type Homo sapiens 113-117