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The structure of bacterial RNA polymerase in complex with the essential transcription elongation factor NusA.


ABSTRACT: There are three stages of transcribing DNA into RNA. These stages are initiation, elongation and termination, and they are well-understood biochemically. However, despite the plethora of structural information made available on RNA polymerase in the last decade, little is available for RNA polymerase in complex with transcription elongation factors. To understand the mechanisms of transcriptional regulation, we describe the first structure, to our knowledge, for a bacterial RNA polymerase in complex with an essential transcription elongation factor. The resulting structure formed between the RNA polymerase and NusA from Bacillus subtilis provides important insights into the transition from an initiation complex to an elongation complex, and how NusA is able to modulate transcription elongation and termination.

SUBMITTER: Yang X 

PROVIDER: S-EPMC2750059 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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The structure of bacterial RNA polymerase in complex with the essential transcription elongation factor NusA.

Yang Xiao X   Molimau Seeseei S   Doherty Geoff P GP   Johnston Elecia B EB   Marles-Wright Jon J   Rothnagel Rosalba R   Hankamer Ben B   Lewis Richard J RJ   Lewis Peter J PJ  

EMBO reports 20090814 9


There are three stages of transcribing DNA into RNA. These stages are initiation, elongation and termination, and they are well-understood biochemically. However, despite the plethora of structural information made available on RNA polymerase in the last decade, little is available for RNA polymerase in complex with transcription elongation factors. To understand the mechanisms of transcriptional regulation, we describe the first structure, to our knowledge, for a bacterial RNA polymerase in com  ...[more]

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