14911
Mobility shift assays with various mutant probes and B cell nuclear extracts demonstrated that the core sequence TAAT was essential for binding to this site.
 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:
 None