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Stimulation of the human immunodeficiency virus type 2 ( HIV-2 ) gene expression by the cytomegalovirus and HIV-2 transactivator gene .
 DNA: HIV-2 transactivator 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: HIV-2 transactivator gene