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Restoration of the Epstein-Barr virus ZEBRA protein 's capacity to disrupt latency by the addition of heterologous activation regions .
 Epstein-Barr virus ZEBRA protein, heterologous activation regions
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:
 Epstein-Barr virus ZEBRA protein, heterologous activation regions