150
We determined that an initiator-like sequence present at the cap site and an Ets consensus sequence are required for full promoter function .
 ( DNA: Ets consensus sequence, None) , ( DNA: cap site, None) , ( DNA: initiator-like sequence, None) , ( DNA: 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: Ets consensus sequence, None) , ( DNA: cap site, None) , ( DNA: initiator-like sequence, None) , ( DNA: promoter, None) 