2326
These features are very different from those observed in B104 cell death induced by anti-IgM Ab .
 ( protein: anti-IgM Ab, None) , ( cell line: B104 cell, 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: anti-IgM Ab, None) , ( cell line: B104 cell, None) 