2998
This report describes studies indicating that the most proximal of these two regulatory elements is an important determinant of its restricted expression .
 ( DNA: regulatory elements, 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: regulatory elements, None) 