5727
Furthermore, E1A mutant proteins that cannot bind the cellular transcriptional coactivator , p300 , and that fail to induce cytolytic susceptibility also failed to sensitize cells to injury-induced apoptosis .
 ( protein: p300, None) , ( protein: mutant proteins, None) , ( protein: cellular transcriptional coactivator, None) , ( protein: E1A, 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: p300, None) , ( protein: mutant proteins, None) , ( protein: cellular transcriptional coactivator, None) , ( protein: E1A, None) 