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The human T-cell leukemia virus type I ( HTLV-I ) promoter contains three copies of imperfect repeats of a 21-base pair sequence designated here as TRE ( Tax -response element ) that is responsive to the virally encoded transactivator protein Tax .
 protein: virally encoded transactivator protein; DNA: Tax -response element; DNA: TRE; DNA: human T-cell leukemia virus type I ( HTLV-I ) promoter; protein: Tax; protein: Tax
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:
 protein: virally encoded transactivator protein; DNA: Tax -response element; DNA: TRE; DNA: human T-cell leukemia virus type I ( HTLV-I ) promoter; protein: Tax; protein: Tax