5297
Recently, we have identified a repression domain located within the N terminus of Oct-2a ( amino acids 2-99 ).
 ( protein: amino acids 2-99, None) , ( protein: N terminus, None) , ( protein: Oct-2a, None) , ( protein: repression domain, 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:
 ( protein: amino acids 2-99, None) , ( protein: N terminus, None) , ( protein: Oct-2a, None) , ( protein: repression domain, None) 