2243
The human and mouse GATA3 transcription units start at a major initiation site .
 ( DNA: major initiation site, 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: major initiation site, None) 