13443
This pathway resulted in the induction of the transcription factors NF-kappa B , NF-AT , and proteins binding to the CD28 response element of the IL-2 promoter .
 NF-AT, IL-2 promoter, transcription factors, NF-kappa B, IL-2, CD28
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-AT, IL-2 promoter, transcription factors, NF-kappa B, IL-2, CD28