13246
The intermediate complex appeared to react with both anti- STAT 6 and anti- STAT 1 .
 ( protein: anti- STAT 6, None) , ( protein: STAT 6, None) , ( protein: STAT 1, None) , ( protein: anti- STAT 1, 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: anti- STAT 6, None) , ( protein: STAT 6, None) , ( protein: STAT 1, None) , ( protein: anti- STAT 1, None) 