Conformational changes of E. coli RNA polymerase during transcription initiation.


Escherichia coli RNA polymerase-promoter complex undergoes a multistep process to initiate transcription. We have employed fluorescence spectroscopic approaches to detect the conformational states of the enzyme during this multistep process. A fluorescence assay based on the measurement of fluorescence of free and promoter-bound enzyme as a function of… (More)


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