831
A Tat -responsive element is found upstream within the viral promoter that in glial-derived cell lines allows transactivation in the absence of TAR .
 cell line: glial-derived cell lines; RNA: TAR; DNA: viral promoter; protein: Tat; DNA: Tat -responsive element
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:
 cell line: glial-derived cell lines; RNA: TAR; DNA: viral promoter; protein: Tat; DNA: Tat -responsive element