11974
The DNA-binding domain ( amino acids 421-486 ) is completely conserved among human , squirrel monkey , owl monkey , and cotton-top tamarin receptors .
 ( protein: amino acids 421-486, None) , ( protein: DNA-binding 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 421-486, None) , ( protein: DNA-binding domain, None) 