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transcription elongation factor GreB The GreA and GreB transcription elongation factors enable to continuation of RNA transcription past template-encoded arresting sites. Among the Proteobacteria, distinct clades of GreA and GreB are found. GreB differs functionally in that it releases larger oligonucleotides. This model describes proteobacterial GreB. [Transcription, Transcription factors]
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