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By using Jurkat and primary human T lymphocytes , we demonstrate that the simultaneous activation of two second messengers of the TCR -initiated signal transduction , protein kinase C ( PKC ) and calcineurin , results in the synergistic activation of the IkappaBalpha kinase (IKK) complex but not of another putative IkappaBalpha kinase , p90(rsk) .
 ( protein: IkappaBalpha, None) , ( protein: TCR, None) , ( protein: putative IkappaBalpha kinase, None) , ( protein: calcineurin, None) , ( cell line: Jurkat, None) , ( cell type: T lymphocytes, None) , ( protein: p90(rsk), None) , ( protein: PKC, None) , ( protein: IkappaBalpha kinase (IKK) complex, None) , ( protein: IkappaBalpha, None) , ( cell type: primary human T lymphocytes, None) , ( protein: protein kinase C, 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: IkappaBalpha, None) , ( protein: TCR, None) , ( protein: putative IkappaBalpha kinase, None) , ( protein: calcineurin, None) , ( cell line: Jurkat, None) , ( cell type: T lymphocytes, None) , ( protein: p90(rsk), None) , ( protein: PKC, None) , ( protein: IkappaBalpha kinase (IKK) complex, None) , ( protein: IkappaBalpha, None) , ( cell type: primary human T lymphocytes, None) , ( protein: protein kinase C, None) 