12871
Regulation of the vitellogenin gene B1 promoter after transfer into hepatocytes in primary cultures.
 ( DNA: vitellogenin gene B1 promoter, None) , ( cell type: hepatocytes, 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: vitellogenin gene B1 promoter, None) , ( cell type: hepatocytes, None) 