13444
On the other hand, stimulation of T cells with mAb 9.3 increased the level of intracellular Ca2+ and triggered the activation of p56(lck) and c-Raf-1 , but was unable to induce the binding of transcription factors to the IL-2 promoter .
 ( protein: IL-2, None) , ( DNA: IL-2 promoter, None) , ( protein: c-Raf-1, None) , ( protein: mAb 9.3, None) , ( protein: transcription factors, None) , ( protein: p56(lck), None) , ( cell type: T cells, 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: IL-2, None) , ( DNA: IL-2 promoter, None) , ( protein: c-Raf-1, None) , ( protein: mAb 9.3, None) , ( protein: transcription factors, None) , ( protein: p56(lck), None) , ( cell type: T cells, None) 