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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Sensitive detection of bacterial transcription initiation sites and differentiation from RNA processing sites in the pheromone-induced plasmid transfer system of Enterococcus faecalis
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Sensitive detection of bacterial transcription initiation sites and differentiation from RNA processing sites in the pheromone-induced plasmid transfer system of Enterococcus faecalis

机译:信息素诱导的粪肠球菌质粒转移系统中细菌转录起始位点的敏感检测和RNA加工位点的分化

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摘要

A method was developed to detect 5' ends of bacterial RNAs expressed at low levels and to differentiate newly initiated transcripts from processed transcripts pro- duced in vivo. The procedure involves use of RNA ligase to link a specific oligoribonucleotide to the 5' ends of cellular RNAs, followed by production of cDNA and amplification of the gene of interest by PCR. The method was used to identify the precise sites of transcription initiation within a 10-kb region of the pheromone-inducible conjugative plasmid pCF10 of Entero- coccus faecalis.
机译:开发了一种方法来检测低水平表达的细菌RNA的5'末端,并将新启动的转录本与体内产生的加工转录本区分开。该过程包括使用RNA连接酶将特定的寡核糖核苷酸连接到细胞RNA的5'末端,然后产生cDNA,并通过PCR扩增目的基因。该方法用于鉴定粪肠球菌的信息素诱导型结合质粒pCF10的10-kb区域内转录起始的精确位点。

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