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The transactivator (IE-2) gene of the human cytomegalovirus ( CMV ) can enhance HIV-2 as well as HIV-1 gene expression in vitro.
 DNA: transactivator (IE-2) gene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: transactivator (IE-2) gene