PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11201243-4 2001 It is known that PAI-1 is a labile protein which becomes inactive during incubation at 37 degrees C. However, after the incubation of PAI-1 with SP-40,40 at 37 degrees C for 1 h, PAI-1 could still form a complex with tissue plasminogen activator (tPA), and it inhibited plasmin formation in the mixture of plasminogen and urine plasminogen activator (uPA). sp-40 145-150 chromosome 20 open reading frame 181 Homo sapiens 217-245