10615
Induction of this distal IL-2 enhancer differs from induction of the proximal IL-2 promoter-enhancer , since it is induced by phorbol esters alone and independent from Ca2+ signals .
 IL-2 enhancer, IL-2, proximal IL-2 promoter-enhancer, IL-2, distal IL-2 enhancer
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 enhancer, IL-2, proximal IL-2 promoter-enhancer, IL-2, distal IL-2 enhancer