7818
Our results show the cleavage of the human transcription factor SP1 in vivo and in vitro, underlining the central role of caspase 3-like proteases during the process of anti-IgM-induced apoptosis .
 ( protein: SP1, None) , ( protein: caspase 3-like proteases, None) , ( protein: 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: SP1, None) , ( protein: caspase 3-like proteases, None) , ( protein: transcription factor, None) 