12220
Demonstration of EBV mRNA transcripts encoding immediate-early transcriptional transactivators in EBV -infected T cells provides the first evidence for a possible mechanism whereby EBV could contribute to T cell proliferation and EBV -associated T cell malignancies .
 ( cell type: T cells, None) , ( cell type: EBV -infected T cells, None) , ( protein: immediate-early transcriptional transactivators, None) , ( RNA: EBV mRNA transcripts, 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:
 ( cell type: T cells, None) , ( cell type: EBV -infected T cells, None) , ( protein: immediate-early transcriptional transactivators, None) , ( RNA: EBV mRNA transcripts, None) 