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UNIT 27.3 Analysis of Nonsense-Mediated mRNA Decay in Saccharomyces cerevisiae

机译:UNIT 27.3酿酒酵母中无意义介导的mRNA衰变分析

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Nonsense-mediated mRNA decay is a highly conserved pathway that degrades mRNAs with premature termination codons. These mRNAs include mRNAs transcribed from nonsense or frameshift alleles as well as wild-type mRNA with signals that direct ribosomes toterminate prematurely. This unit describes techniques to monitor steady-state mRNA levels, decay rates, and structural features of mRNAs targeted by this pathway, as well as in vivo analysis of nonsense suppression and allosuppression in the yeast Saccharomyces cerevisiae. Protocols for the structural features of mRNA include analysis of cap status, 5′ and 3′ untranslated region (UTR) lengths, and poly(A) tail length. Curr. Protoc.
机译:无意义介导的mRNA衰变是一个高度保守的途径,可降解具有过早终止密码子的mRNA。这些mRNA包括从无义或移码等位基因转录的mRNA,以及带有指导核糖体过早终止的信号的野生型mRNA。该单元描述了监测稳态mRNA水平,衰减率和该途径靶向的mRNA结构特征的技术,以及在酵母中对无意义抑制和同种异体抑制的体内分析。 mRNA的结构特征的协议包括帽状态,5'和3'非翻译区(UTR)长度和poly(A)尾巴长度的分析。 Curr。协议。

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