1831
Solution structure of a POU-specific homeodomain : 3D-NMR studies of human B-cell transcription factor Oct-2 .
 ( protein: Oct-2, None) , ( protein: B-cell transcription factor, None) , ( protein: POU-specific homeodomain, 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: Oct-2, None) , ( protein: B-cell transcription factor, None) , ( protein: POU-specific homeodomain, None) 