9554
Taken together, these data suggest that tTG , acting on the pRB protein , might play an important role in the cell progression through the death program.
 ( protein: pRB, None) , ( protein: tTG, None) , ( protein: pRB protein, 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: pRB, None) , ( protein: tTG, None) , ( protein: pRB protein, None) 