7093
Escape of human cytomegalovirus from HLA-DR -restricted CD4(+) T-cell response is mediated by repression of gamma interferon -induced class II transactivator expression .
 ( protein: class II transactivator, None) , ( protein: HLA-DR, None) , ( protein: gamma interferon, 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: class II transactivator, None) , ( protein: HLA-DR, None) , ( protein: gamma interferon, None) 