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However, induction of I kappa B alpha phosphorylation by both TNF-alpha and the phosphatase inhibitors is associated with the subsequent degradation of I kappa B alpha .
 I kappa B alpha, TNF-alpha, I kappa B alpha
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:
 I kappa B alpha, TNF-alpha, I kappa B alpha