1850
Full activation of the MAP kinases that phosphorylate the Jun activation domain , JNK1 and JNK2 , required costimulation of T cells with either TPA and Ca2+ ionophore or antibodies to TCR and CD28 .
 ( protein: JNK1, None) , ( cell type: T cells, None) , ( protein: Jun activation domain, None) , ( protein: JNK2, None) , ( protein: MAP kinases, None) , ( protein: CD28, None) , ( protein: TCR, 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: JNK1, None) , ( cell type: T cells, None) , ( protein: Jun activation domain, None) , ( protein: JNK2, None) , ( protein: MAP kinases, None) , ( protein: CD28, None) , ( protein: TCR, None) 