核糖体
生物
细胞生物学
蛋白质组
蛋白质生物合成
核糖体分析
平动调节
翻译(生物学)
核糖体RNA
核糖核酸
计算生物学
信使核糖核酸
遗传学
基因
作者
M.C.J. Yip,Sichen Shao
标识
DOI:10.1016/j.tibs.2021.03.008
摘要
Ribosomes that stall inappropriately during protein synthesis harbor proteotoxic components linked to cellular stress and neurodegenerative diseases. Molecular mechanisms that rescue stalled ribosomes must selectively detect rare aberrant translational complexes and process the heterogeneous components. Ribosome-associated quality control pathways eliminate problematic messenger RNAs and nascent proteins on stalled translational complexes. In addition, recent studies have uncovered general principles of stall recognition upstream of quality control pathways and fail-safe mechanisms that ensure nascent proteome integrity. Here, we discuss developments in our mechanistic understanding of the detection and rescue of stalled ribosomal complexes in eukaryotes.
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