5821
Furthermore, Tax -induced transactivation of the bcl-x promoter was also diminished by the mutant IkappaBalpha , which specifically inhibits NF-kappaB activity.
 NF-kappaB, bcl-x promoter, mutant IkappaBalpha, Tax
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:
 NF-kappaB, bcl-x promoter, mutant IkappaBalpha, Tax