4155
In contrast, engagement of the TCR by class II MHC/superantigen , either with or without CD28 ligation, resulted in the induction of NF-AT , AP-1 , and NF-kappaB as well as IL-2 production .
 ( protein: NF-kappaB, None) , ( protein: IL-2, None) , ( protein: CD28, None) , ( protein: AP-1, None) , ( protein: NF-AT, None) , ( protein: TCR, None) , ( protein: class II MHC/superantigen, 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: NF-kappaB, None) , ( protein: IL-2, None) , ( protein: CD28, None) , ( protein: AP-1, None) , ( protein: NF-AT, None) , ( protein: TCR, None) , ( protein: class II MHC/superantigen, None) 