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Tax expressing T cell lines contained a constitutive level of NF-kappa B binding activity , detectable by mobility shift assay and uv cross-linking using a palindromic NF-kappa B probe homologous to the interferon beta PRDII site .
 protein: NF-kappa B; cell line: Tax expressing T cell lines; protein: Tax; protein: NF-kappa B; DNA: interferon beta PRDII site; DNA: palindromic NF-kappa B probe
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; cell line: Tax expressing T cell lines; protein: Tax; protein: NF-kappa B; DNA: interferon beta PRDII site; DNA: palindromic NF-kappa B probe