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Instead of NF kappa B , the activator protein 3 binds to the divergent site in HIV-2 .
 protein: activator protein 3; protein: NF kappa B
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: activator protein 3; protein: NF kappa B