14494
The transactivator HTLV-I Tax activates the promoter of the gene coding for the interleukin 2 alpha-chain receptor ( IL-2R alpha ) via a kappa B site that can bind several protein species of the rel family .
 ( protein: rel family, None) , ( protein: HTLV-I Tax, None) , ( protein: interleukin 2 alpha-chain receptor, None) , ( protein: IL-2R alpha, None) , ( DNA: promoter, None) , ( DNA: kappa B site, 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: rel family, None) , ( protein: HTLV-I Tax, None) , ( protein: interleukin 2 alpha-chain receptor, None) , ( protein: IL-2R alpha, None) , ( DNA: promoter, None) , ( DNA: kappa B site, None) 