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Biology

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Molecular Biology

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Studying DNA and RNA

RNA-Seq Workflow and Data Analysis

Description

RNA sequencing, or RNA-Seq, is a high-throughput method for studying the transcriptome of a cell. The transcriptome is the full set of RNA molecules in a sample. Transcriptomics helps scientists understand how genomes work, how organisms develop, and how some diseases occur.

Before RNA-Seq, resea...

Transcript

RNA测序(RNA-seq)是一种高通量测序技术,用于鉴定和定量样本中的RNA序列。 

可用于分析总RNA或特定RNA群体,如mRNA、tRNA、rRNA和miRNA。该技术在转录组分析、差异基因表达分析以及RNA编辑中具有广泛应用。

在分析特定细胞群体时,需要将目标RNA类型从其他RNA中分离出来。可以使用与mRNA的poly A尾互补的寡核苷酸dT探针来分离mRNA  mRNA转录本。微小RNA,  通常长约15至30个核苷酸的片段通过基于大小的提取方法进行分离。

或者,可使用与污染物互补且共价连接于磁珠的寡核苷酸去除污染性RNA(如核糖体RNA)。通过磁铁将杂交的核糖体RNA从样本中分离,从而留下目标RNA。

纯化的RNA被...

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