4134
A 4- or 10- bp insertion between muE3 and muB inactivated the mu enhancer in S194 plasma cells but did not affect in vitro binding of Ets-1, PU.1 , or the muE3 -binding protein TFE3 , alone or in pairwise combinations.
 ( protein: PU.1, None) , ( DNA: mu enhancer, None) , ( DNA: muB, None) , ( DNA: muE3, None) , ( protein: TFE3, None) , ( protein: muE3 -binding protein, None) , ( cell line: S194 plasma cells, None) , ( DNA: muE3, 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: PU.1, None) , ( DNA: mu enhancer, None) , ( DNA: muB, None) , ( DNA: muE3, None) , ( protein: TFE3, None) , ( protein: muE3 -binding protein, None) , ( cell line: S194 plasma cells, None) , ( DNA: muE3, None) 