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通过高通量测序发现细菌小RNA

Discovery of bacterial sRNAs by high-throughput sequencing.

作者信息

Liu Jane M, Camilli Andrew

机构信息

Howard Hughes Medical Institute and Tufts University School of Medicine, Boston, MA, USA.

出版信息

Methods Mol Biol. 2011;733:63-79. doi: 10.1007/978-1-61779-089-8_5.

Abstract

sRNA-Seq is an unbiased method that allows for the discovery of small noncoding RNAs in bacterial transcriptomes through direct cloning and massively parallel sequencing by synthesis. Small bacterial transcripts are enriched from a total RNA preparation and modified with 5' and 3' linkers that allow for downstream amplification and sequencing. This protocol includes a treatment that depletes small RNA fractions of tRNAs and 5S rRNA, thereby enriching the starting pool for non-tRNA/rRNA sequences. This protocol can be readily modified to target different RNA species for depletion or to change the size range of RNAs to be sequenced. Thus, sRNA-Seq represents a comprehensive, versatile cloning protocol that may be applicable to the cloning of small RNAs of any size range from any organisms.

摘要

小RNA测序是一种无偏差的方法,可通过直接克隆和大规模平行合成测序在细菌转录组中发现小非编码RNA。从小RNA制备物中富集细菌小转录本,并用5'和3'接头进行修饰,以便进行下游扩增和测序。该方案包括一种去除tRNA和5S rRNA小RNA组分的处理,从而富集非tRNA/rRNA序列的起始文库。该方案可以很容易地进行修改,以靶向不同的RNA种类进行去除,或改变要测序的RNA的大小范围。因此,小RNA测序代表了一种全面、通用的克隆方案,可能适用于克隆来自任何生物体的任何大小范围的小RNA。

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