1706
The protease inhibitors N alpha-tosylphenylalanyl chloromethyl ketone ( TPCK ) and N alpha-tosyl-L-lysine chloromethyl ketone ( TLCK ) block activation of NF-kappa B /Rel proteins by preventing degradation of I kappa B alpha .
 NF-kappa B /Rel proteins, I kappa B alpha, NF-kappa B
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 /Rel proteins, I kappa B alpha, NF-kappa B