1333
A novel HIV-1 isolate containing alterations affecting the NF-kappa B element .
 DNA: NF-kappa B element; 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:
 DNA: NF-kappa B element; protein: NF-kappa B