6993
These data suggest that USF/c-Myc and YY1 may play an important role in the HIV-1 -replicative cycle , by modulating both the viral fusion/entry process and viral expression .
 ( protein: YY1, None) , ( protein: USF/c-Myc, 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: YY1, None) , ( protein: USF/c-Myc, None) 