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Deletion mapping and hybrid promoter constructs demonstrate that the newly identified Tat -responsive element corresponds to a sequence within the viral long terminal repeat ( LTR ) previously identified as the HIV-1 enhancer , or NF-kappa B domain .
 protein: Tat; DNA: HIV-1 enhancer; DNA: Tat -responsive element; DNA: NF-kappa B domain; DNA: viral long terminal repeat; DNA: hybrid promoter constructs; DNA: LTR
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: Tat; DNA: HIV-1 enhancer; DNA: Tat -responsive element; DNA: NF-kappa B domain; DNA: viral long terminal repeat; DNA: hybrid promoter constructs; DNA: LTR