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In vitro translated MAD-3 protein was found to specifically inhibit the DNA-binding activity of the p50/p65 NF-kappa B complex but not that of the p50/p50 KBF1 factor or of other DNA-binding proteins .
 protein: NF-kappa B; protein: p50/p65 NF-kappa B complex; protein: DNA-binding proteins; protein: MAD-3 protein; protein: p50/p50 KBF1 factor
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: NF-kappa B; protein: p50/p65 NF-kappa B complex; protein: DNA-binding proteins; protein: MAD-3 protein; protein: p50/p50 KBF1 factor