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A new member of the leucine zipper class of proteins that binds to the HLA DR alpha promoter .
 DNA: HLA DR alpha promoter; protein: leucine zipper class; protein: leucine zipper
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: HLA DR alpha promoter; protein: leucine zipper class; protein: leucine zipper