1013
Furthermore, CAT assays using mutated HIV long terminal repeat -CAT constructs and gel shift assays demonstrate that this activation is dependent on the NF-kappa B enhancer .
 protein: CAT; DNA: HIV long terminal repeat; DNA: HIV long terminal repeat -CAT constructs; protein: NF-kappa B; DNA: NF-kappa B enhancer
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: HIV long terminal repeat; DNA: HIV long terminal repeat -CAT constructs; protein: NF-kappa B; DNA: NF-kappa B enhancer