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Three binding sites for C/EBP proteins are found in the human immunodeficiency virus type 1 ( HIV-1 ) long terminal repeat ( LTR ) (V.M. Tesmer, A.Rajadhyaksha, J.Babin, and M.Bina, Proc.Natl.Acad.Sci. USA 90:7298-7302, 1993).
 protein: C/EBP proteins; DNA: human immunodeficiency virus type 1 ( HIV-1 ) long terminal repeat; 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: C/EBP proteins; DNA: human immunodeficiency virus type 1 ( HIV-1 ) long terminal repeat; DNA: LTR