Riboswitches. A riboswitch-containing sRNA controls gene expression by sequestration of a response regulator.
Riboswitches. A riboswitch-containing sRNA controls gene expression by sequestration of a response regulator.
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核糖开关。含核糖开关的SRNA通过隔离反应调节剂来控制基因表达。
DOI:
10.1126/science.1255091
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发表时间:
2014-08-22
期刊:
影响因子:
--
通讯作者:
Garsin DA
中科院分区:
文献类型:
--
作者:
DebRoy S;Gebbie M;Ramesh A;Goodson JR;Cruz MR;van Hoof A;Winkler WC;Garsin DA
The ethanolamine utilization (eut) locus of Enterococcus faecalis, containing at least 19 genes distributed over four polycistronic messenger RNAs, appears to be regulated by a single adenosyl cobalamine (AdoCbl)–responsive riboswitch. We report that the AdoCbl-binding riboswitch is part of a small, transacting RNA, EutX, which additionally contains a dual-hairpin substrate for the RNA binding–response regulator, EutV. In the absence of AdoCbl, EutX uses this structure to sequester EutV. EutV is known to regulate the eut messenger RNAs by binding dual-hairpin structures that overlap terminators and thus prevent transcription termination. In the presence of AdoCbl, EutV cannot bind to EutX and, instead, causes transcriptional read through of multiple eut genes. This work introduces riboswitch-mediated control of protein sequestration as a posttranscriptional mechanism to coordinately regulate gene expression.
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影响因子:
64.8
作者:
通讯作者:
--
影响因子:
3.2
作者:
Baker, Kris Ann;Perego, Marta
通讯作者:
Perego, Marta
影响因子:
64.5
作者:
Waters LS;Storz G
通讯作者:
Storz G
DOI:
10.1038/nrmicro2334
发表时间:
2010-04
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.2
作者:
Del Papa, Maria Florencia;Perego, Marta
通讯作者:
Perego, Marta