9206
OCA-B is a B-cell-specific coregulator of the broadly expressed POU domain transcription factor Oct-1 .
 ( protein: OCA-B, None) , ( protein: B-cell-specific coregulator, None) , ( protein: Oct-1, None) , ( protein: POU domain transcription factor, 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: OCA-B, None) , ( protein: B-cell-specific coregulator, None) , ( protein: Oct-1, None) , ( protein: POU domain transcription factor, None) 