1769
The nuclear factor kappa B ( NF-kappa B ) is a eukaryotic transcription factor .
 NF-kappa B, nuclear factor kappa B, transcription factor
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-kappa B, nuclear factor kappa B, transcription factor