9970
Thus, our data establish that ATF/CREB factors functionally modulate histone H4 gene transcription at distal and proximal promoter elements .
 ( DNA: histone H4 gene, None) , ( protein: ATF/CREB factors, 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: histone H4 gene, None) , ( protein: ATF/CREB factors, None) 