10096
Further experiments using subsets of nucleotides and DNA mutations allowed us to reprogram the transcription start sites , in a way that can be described by repositioning of the single - stranded transcription bubble relative to the RNAP active site within RP ( o ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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