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Our results indicate that the AP-1 site at -150 bp represents a major, if not the only, site of PKC responsiveness in the IL-2 promoter .
 DNA: -150 bp; DNA: AP-1 site; DNA: IL-2 promoter; protein: PKC
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: -150 bp; DNA: AP-1 site; DNA: IL-2 promoter; protein: PKC