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These proteins interacted specifically with the symmetric NF-kappa B site from the interferon beta ( IFN-beta ) promoter .
 protein: IFN-beta; DNA: symmetric NF-kappa B site; protein: proteins; DNA: interferon beta ( IFN-beta ) promoter
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: IFN-beta; DNA: symmetric NF-kappa B site; protein: proteins; DNA: interferon beta ( IFN-beta ) promoter