1407
Two gel shift complexes ( Mono A and Mono B ) were formed with separate sequence elements within this region.
 ( protein: Mono B, None) , ( protein: gel shift complexes, None) , ( protein: Mono A, 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: Mono B, None) , ( protein: gel shift complexes, None) , ( protein: Mono A, None) 