5885
The tyrosine phosphatase specific inhibitor pervanadate is a potent activator of T lymphocytes through induction of tyrosine phosphorylation and downstream events of the activation cascade .
 ( protein: tyrosine phosphatase, None) , ( protein: tyrosine phosphorylation, None) , ( cell type: T lymphocytes, 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: tyrosine phosphatase, None) , ( protein: tyrosine phosphorylation, None) , ( cell type: T lymphocytes, None) 