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The insertion of multiple copies of the binding site for the former or latter factor into a heterologous promoter reduced the promoter activity to one-tenth or one-third, respectively.
 DNA: heterologous promoter; DNA: binding site
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: heterologous promoter; DNA: binding site