A Cre Transcription Fidelity Reporter Identifies GreA as a Major RNA Proofreading Factor in Escherichia coli

We made a coupled genetic reporter that detects rare transcription misincorporation errors to measure RNA polymerase transcription fidelity in Using this reporter, we demonstrated that the transcript cleavage factor GreA, but not GreB, is essential for proofreading of a transcription error where a r...

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