903
Epstein-Barr virus nuclear protein 2 transactivation of the latent membrane protein 1 promoter is mediated by J kappa and PU.1 .
 ( protein: PU.1, None) , ( protein: J kappa, None) , ( protein: Epstein-Barr virus nuclear protein 2, None) , ( DNA: latent membrane protein 1 promoter, 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: PU.1, None) , ( protein: J kappa, None) , ( protein: Epstein-Barr virus nuclear protein 2, None) , ( DNA: latent membrane protein 1 promoter, None) 