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Subcloning of the variant NF-kappa B segments into LTR-driven CAT expression vectors confirmed a correlation between promoter activity and replicative/cytopathic capacity .
 protein: CAT; DNA: variant NF-kappa B segments; DNA: LTR-driven CAT expression vectors; protein: NF-kappa B
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: CAT; DNA: variant NF-kappa B segments; DNA: LTR-driven CAT expression vectors; protein: NF-kappa B