12875
Together, these findings support the notion that chromatin configuration as well as the interplay of promoter elements mediate proper hormone-dependent and tissue-specific expression of the B1 vitellogenin gene .
 ( DNA: B1 vitellogenin gene, None) , ( DNA: promoter elements, None) , ( DNA: chromatin, 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: B1 vitellogenin gene, None) , ( DNA: promoter elements, None) , ( DNA: chromatin, None) 