期刊
CURRENT OPINION IN STRUCTURAL BIOLOGY
卷 19, 期 6, 页码 691-700出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.sbi.2009.10.004
关键词
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资金
- NIH [R01GM74252, R01GM74840]
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM074252, R01GM074840] Funding Source: NIH RePORTER
Transcription is the first and most regulated step of gene expression. RNA polymerase (RNAP) is the heart of the transcription machinery and a major target for numerous regulatory pathways in living cells. The crystal structures of transcription complexes formed by bacterial RNAP in various configurations have provided a number of breakthroughs in understanding basic, universal mechanisms of transcription and have revealed regulatory 'hot spots' in RNAP that serve as targets and anchors for auxiliary transcription factors. In combination with biochemical analyses, these structures allow feasible modeling of the regulatory complexes for which experimental structural data are still missing. The available structural information suggests a number of general mechanistic predictions that provide a reference point and direction for future studies of transcription regulation.
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