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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 .
 p300, mutant proteins, cellular transcriptional coactivator, E1A
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 p300, mutant proteins, cellular transcriptional coactivator, E1A