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We report here that the HIV-1 -encoded Nef protein inhibits the induction of NF-kappa B DNA-binding activity by T- cell mitogens .
 protein: HIV-1 -encoded Nef protein; protein: NF-kappa B; protein: T- cell mitogens
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: HIV-1 -encoded Nef protein; protein: NF-kappa B; protein: T- cell mitogens