7502
T cell proliferation and production of IL-2 , IL-4 , and IFN-gamma induced by both CD3 and CD3 /CD28 ligation and the nuclear expression of the c-Jun and ATF-2 proteins are each blocked by the p38 MAPK inhibitor SB203580 .
 ( protein: /CD28, None) , ( protein: p38 MAPK, None) , ( protein: CD3, None) , ( protein: IL-4, None) , ( protein: CD3, None) , ( protein: IL-2, None) , ( protein: IFN-gamma, 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: /CD28, None) , ( protein: p38 MAPK, None) , ( protein: CD3, None) , ( protein: IL-4, None) , ( protein: CD3, None) , ( protein: IL-2, None) , ( protein: IFN-gamma, None) 