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Among these properties are NF-kappa B 's rapid posttranslational activation in response to many pathogenic signals , its direct participation in cytoplasmic/nuclear signaling , and its potency to activate transcription of a great variety of genes encoding immunologically relevant proteins .
 immunologically relevant proteins, NF-kappa B
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 immunologically relevant proteins, NF-kappa B