4690
The activation of T cells requires engagement of the T cell receptor/CD3 complex and co-stimulatory molecules , and results in the triggering of several signaling pathways which lead rapidly to the nuclear translocation of several transcription factors , such as nuclear factor (NF)-kappa B and NF-AT .
 ( protein: NF-AT, None) , ( protein: transcription factors, None) , ( protein: nuclear factor (NF)-kappa B, None) , ( protein: co-stimulatory molecules, None) , ( cell type: T cells, None) , ( protein: T cell receptor/CD3 complex, 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-AT, None) , ( protein: transcription factors, None) , ( protein: nuclear factor (NF)-kappa B, None) , ( protein: co-stimulatory molecules, None) , ( cell type: T cells, None) , ( protein: T cell receptor/CD3 complex, None) 