14704
We report the characterization of the cis- and trans- acting elements involved in the tissue-specific activity of the L gene erythroid promoter .
 ( DNA: L gene erythroid promoter, 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: L gene erythroid promoter, None) 