9301
Quantitative experiments comparing binding of these transcription factors to the IL-2 promoter are currently under investigation.
 IL-2 promoter, transcription factors
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-2 promoter, transcription factors