2454
Thrombin stimulated tyrosine phosphorylation of several proteins of molecular mass 40 , 42 , 70 , 120 , and 130 kDa .
 ( protein: Thrombin, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: Thrombin, None) 