14498
Moreover, whereas both Tax and phorbol 12-myristate 13-acetate ( PMA ) are able to efficiently induce the binding of NF-kappa B to the IL-2R alpha kappa B site , PMA is functionally inactive.
 Tax, kappa B site, NF-kappa B, IL-2R alpha kappa B site, IL-2R 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:
 Tax, kappa B site, NF-kappa B, IL-2R alpha kappa B site, IL-2R alpha