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Infection and replication of Tat- human immunodeficiency viruses : genetic analyses of LTR and tat mutations in primary and long-term human lymphoid cells .
 DNA: LTR; protein: tat mutations
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: LTR, tat mutations 
Answer:
 DNA: LTR; protein: tat mutations