7350
Forced expression of E2F1 could induce expression of all members of the endogenous MCM genes in rat embryonal fibroblast REF52 cells .
 ( DNA: endogenous MCM genes, None) , ( cell line: rat embryonal fibroblast REF52 cells, None) , ( protein: E2F1, 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: endogenous MCM genes, None) , ( cell line: rat embryonal fibroblast REF52 cells, None) , ( protein: E2F1, None) 