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Much attention has been focused on the interaction of Tat with a specific RNA target termed TAR ( transactivation responsive ) which is present in the leader sequence of all HIV-1 mRNAs .
 RNA: transactivation responsive; RNA: TAR; RNA: RNA target; protein: Tat; RNA: HIV-1 mRNAs
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:
 RNA: transactivation responsive; RNA: TAR; RNA: RNA target; protein: Tat; RNA: HIV-1 mRNAs