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Company: BMB
Catalog#: 11034731001
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Detection and Analysis of Circular RNAs by RT-PCR
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2018-03-20
[Abstract]  Gene expression in eukaryotic cells is tightly regulated at the transcriptional and posttranscriptional levels. Posttranscriptional processes, including pre-mRNA splicing, mRNA export, mRNA turnover, and mRNA translation, are controlled by RNA-binding proteins (RBPs) and noncoding (nc)RNAs. The vast family of ncRNAs comprises diverse regulatory RNAs, such as microRNAs and long noncoding (lnc)RNAs, but also the poorly explored class of circular (circ)RNAs. Although first discovered more than three decades ago by electron microscopy, only the advent of high-throughput RNA-sequencing (RNA-seq) and the development of innovative bioinformatic pipelines have begun to allow the systematic identification of circRNAs (Szabo and Salzman, 2016; Panda et al., 2017b; Panda et al., ... [摘要]  真核细胞中的基因表达在转录和转录后水平受到严格调控。 mRNA转录,mRNA转录和mRNA翻译等后转录过程由RNA结合蛋白(RBPs)和非编码(nc)RNAs控制。大量的ncRNA家族包含多种调控RNA,如microRNAs和长的非编码(lnc)RNAs,但也是探索不足的一类环状RNAs。虽然三十多年前电子显微镜首次发现,但只有高通量RNA测序(RNA-seq)的出现和创新生物信息学管道的开发已经开始允许系统鉴定circRNA(Szabo和Salzman,2016;熊猫,2017b;熊猫等,2017c)。然而,通过RNA测序鉴定的真正的circRNA的验证需要其他分子生物学技术,包括常规或定量(q)聚合酶链反应(PCR)和Northern印迹分析(Jeck和Sharpless,2014)的逆转录(RT)。使用不同引物的环状RNA的RT-qPCR分析已被广泛用于检测,验证和有时定量circRNA(Abdelmohsen等人,2015和2017; Panda等人, ,2017b)。如在此详述的,设计为跨越循环RNA后接连接序列的分歧引物可以特异性扩增circRNA而不是对应的线性RNA。总之,使用不同引物的RT-PCR分析允许直接检测和定量circRNA。

【背景】CircRNAs是共价闭合的,缺少5'或3'末端的单链RNA。虽然它们的起源知之甚少,但它们可以通过称为反向剪接的过程从前体mRNA产生(Panda等人,2017d; ...

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