13990
Loss- and gain-of-function mutations reveal an important role of BSAP ( Pax-5 ) at the start and end of B cell differentiation .
 ( protein: Pax-5, None) , ( protein: BSAP, 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: Pax-5, None) , ( protein: BSAP, None) 