11523
LR1 is a B cell-specific, sequence-specific DNA binding activity that regulates transcription in activated B cells .
 ( protein: LR1, None) , ( cell type: activated B cells, 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: LR1, None) , ( cell type: activated B cells, None) 