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A transcription factor NF kappa B , which regulates expression of various cellular genes involved in immune responses and viral genes including HIV , is sequestered in the cytoplasm as a complex with an inhibitory protein I kappa B .
 protein: inhibitory protein I kappa B; DNA: viral genes; protein: NF kappa B; protein: transcription 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: inhibitory protein I kappa B; DNA: viral genes; protein: NF kappa B; protein: transcription factor