10662
Finally, a direct interaction between RFX5 and CIITA was detected with the yeast two-hybrid and far-Western blot assays .
 CIITA, RFX5
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:
 CIITA, RFX5