9597
CONCLUSIONS: MZF-1 and MZF-2 mRNAs seem to be produced by the alternative use of two different transcription initiation sites .
 ( DNA: transcription initiation sites, 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: transcription initiation sites, None) 