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Here we describe a novel regulatory element within the IL-2 promoter located immediately upstream of the nuclear factor of activated T cell ( NFAT ) domain .
 DNA: regulatory element; DNA: nuclear factor of activated T cell ( NFAT ) domain; protein: NFAT; protein: nuclear factor of activated T cell; DNA: IL-2 promoter
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: regulatory element; DNA: nuclear factor of activated T cell ( NFAT ) domain; protein: NFAT; protein: nuclear factor of activated T cell; DNA: IL-2 promoter