7632
For IL-2R and signaling pathway molecule analysis , peripheral blood lymphocytes were stimulated with phytohemagglutinin ( PHA ).
 ( protein: phytohemagglutinin, None) , ( protein: IL-2R, None) , ( cell type: blood lymphocytes, None) , ( protein: PHA, 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: phytohemagglutinin, None) , ( protein: IL-2R, None) , ( cell type: blood lymphocytes, None) , ( protein: PHA, None) 