13371
In this study, we analyzed whether activities of these phosphatases are necessary for the expression of the IL-2 gene .
 IL-2, IL-2 gene
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, IL-2 gene