14861
The observation that a mutated LT-kappa B construct ( M1-CAT ) was inactive in C81-66-45 , confirmed the importance of NF-kappa B in LT gene expression .
 mutated LT-kappa B construct, NF-kappa B, LT, M1-CAT, C81-66-45
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 mutated LT-kappa B construct, NF-kappa B, LT, M1-CAT, C81-66-45