Which of the promoter elements are always present

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Reference no: EM1395674

Considering an E. coli promoter that could be recognized by a ?70-containing RNA polymerase holoenzyme, which of the promoter elements are always present, and which can be missing or altered? How does this E. coli promoter compare to a typical eukaryotic Pol II promoter?

Reference no: EM1395674

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