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A 724 - bp segment of the 5 ' - flanking region consisting of the proximal E - box flanked upstream by a mammalian - specific 352 - bp region was sufficient for maximal transcriptional activation in postconfluent BC3H1 myoblasts .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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