8889
Chicken IL2 contains five repeats of the "instability" motif ATTTA in the 3'untranslated region in exon 4 .
 ( protein: IL2, None) , ( DNA: 3#$%#untranslated region, None) , ( DNA: exon 4, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: IL2, None) , ( DNA: 3#$%#untranslated region, None) , ( DNA: exon 4, None) 