14575
Genetic mapping studies within the E1A gene demonstrated that expression of only the first exon of E1A was sufficient to inhibit IFN -MCP .
 ( DNA: E1A, None) , ( protein: IFN, None) , ( DNA: E1A gene, None) , ( DNA: E1A, 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:
 ( DNA: E1A, None) , ( protein: IFN, None) , ( DNA: E1A gene, None) , ( DNA: E1A, None) 