Organizing principles of mammalian nonsense-mediated mRNA decay.

Organizing principles of mammalian nonsense-mediated mRNA decay.
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DOI:
10.1146/annurev-genet-111212-133424
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发表时间:
2013
影响因子:
11.1
通讯作者:
Maquat LE
Maquat LE
中科院分区:
生物学1区
文献类型:
--
作者:
Popp MW;Maquat LE

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细胞使用信使 RNA (mRNA) 来确保 DNA 编码的遗传信息的准确传播。鉴于 mRNA 在很大程度上指导细胞表型关键效应物(即蛋白质)的合成,因此对 mRNA 质量和数量的严格调节是有效细胞稳态的先决条件。在这里,我们回顾了无义介导的 mRNA 衰减 (NMD),这是细胞在细胞质中进化以确保转录组保真度的最典型的转录后质量控制机制。我们使用蛋白质质量控​​制作为概念框架来组织对 NMD 的了解,强调这两种聚合物质量控制途径之间的总体相似性、蛋白质质量控​​制和 NMD 途径的交叉点,以及蛋白质质量控​​制如何为 mRNA 质量控制研究提供新途径。
Cells use messenger RNAs (mRNAs) to ensure the accurate dissemination of genetic information encoded by DNA. Given that mRNAs largely direct the synthesis of a critical effector of cellular phenotype, i.e., proteins, tight regulation of both the quality and quantity of mRNA is a prerequisite for effective cellular homeostasis. Here, we review nonsense-mediated mRNA decay (NMD), which is the best-characterized posttranscriptional quality control mechanism that cells have evolved in their cytoplasm to ensure transcriptome fidelity. We use protein quality control as a conceptual framework to organize what is known about NMD, highlighting overarching similarities between these two polymer quality control pathways, where the protein quality control and NMD pathways intersect, and how protein quality control can suggest new avenues for research into mRNA quality control.
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