PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2974648-2 1988 The effect of platelets on amidolytic activity on S-2251 was due to the potentiating effect of plasminogen activation by t-PA, because it was observed only in the presence of both plasminogen and t-PA. valyl-leucyl-lysine 4-nitroanilide 50-56 plasminogen activator, tissue type Homo sapiens 121-125 2974648-2 1988 The effect of platelets on amidolytic activity on S-2251 was due to the potentiating effect of plasminogen activation by t-PA, because it was observed only in the presence of both plasminogen and t-PA. valyl-leucyl-lysine 4-nitroanilide 50-56 plasminogen activator, tissue type Homo sapiens 196-200