11706
Mobility shift assays showed that in vitro translated Pax-5a and Pax-5d , but not Pax-5b or Pax-5e , could interact with a B-cell-specific activator protein-binding site on the blk promoter .
 ( protein: Pax-5b, None) , ( DNA: B-cell-specific activator protein-binding site, None) , ( DNA: blk promoter, None) , ( protein: Pax-5a, None) , ( protein: Pax-5e, None) , ( protein: Pax-5d, 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-5b, None) , ( DNA: B-cell-specific activator protein-binding site, None) , ( DNA: blk promoter, None) , ( protein: Pax-5a, None) , ( protein: Pax-5e, None) , ( protein: Pax-5d, None) 