13029
Unexpectedly, we found that conventional procedures employed to prepare cellular extracts cause the release of proteolytic activities that are normally stored in intracellular granules , resulting in the degradation of various NF-kappaB /Rel and STAT proteins .
 NF-kappaB, NF-kappaB /Rel, STAT proteins
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, NF-kappaB /Rel, STAT proteins