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Since AP-1 is part of the NFAT complex , we conclude that the IL-7 -signaling pathway is involved in the activation of the fos and jun proteins of which AP-1 consists.
 IL-7, AP-1, AP-1, NFAT complex
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:
 IL-7, AP-1, AP-1, NFAT complex