RNA polymerase active center: the molecular engine of transcription.
RNA polymerase active center: the molecular engine of transcription.
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DOI:
10.1146/annurev.biochem.76.052705.164655
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发表时间:
2009
影响因子:
16.6
通讯作者:
Nudler E
中科院分区:
文献类型:
--
作者:
Nudler E
RNA polymerase (RNAP) is a complex molecular machine that governs gene expression and its regulation in all cellular organisms. To accomplish its function of accurately producing a full length RNA copy of a gene, RNAP performs a plethora of chemical reactions and undergoes multiple conformational changes in response to cellular conditions. At the heart of this machine is the active center - the engine, which is composed of distinct fixed and moving parts that serve as the ultimate acceptor of regulatory signals and target of inhibitory drugs. Recent advances in the structural and biochemical characterization of RNAP explain the active center at the atomic level and enable new approaches to understanding the entire transcription mechanism, its exceptional fidelity and control.
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