Emerging mechanisms of human mitochondrial translation regulation.

IF 11.6 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Michele Brischigliaro, Ahram Ahn, Seungwoo Hong, Flavia Fontanesi, Antoni Barrientos
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引用次数: 0

Abstract

Mitochondrial translation regulation enables precise control over the synthesis of hydrophobic proteins encoded by the organellar genome, orchestrating their membrane insertion, accumulation, and assembly into oxidative phosphorylation (OXPHOS) complexes. Recent research highlights regulation across all translation stages (initiation, elongation, termination, and recycling) through a complex interplay of mRNA structures, specialized translation factors, and unique regulatory mechanisms that adjust protein levels for stoichiometric assembly. Key discoveries include mRNA-programmed ribosomal pausing, frameshifting, and termination-dependent re-initiation, which fine-tune protein synthesis and promote translation of overlapping open reading frames (ORFs) in bicistronic transcripts. In this review, we examine these advances, which are significantly enhancing our understanding of mitochondrial gene expression.

人类线粒体翻译调控的新机制。
线粒体翻译调节能够精确控制由细胞器基因组编码的疏水蛋白的合成,协调它们的膜插入,积累和组装成氧化磷酸化(OXPHOS)复合物。最近的研究强调了所有翻译阶段(起始、延伸、终止和再循环)的调节,通过mRNA结构、专门的翻译因子和调节化学计量组装蛋白质水平的独特调节机制的复杂相互作用。主要发现包括mrna程序性核糖体暂停、帧移和终止依赖性重新起始,它们可以微调蛋白质合成并促进双转录本中重叠开放阅读框(orf)的翻译。在这篇综述中,我们研究了这些进展,这些进展大大提高了我们对线粒体基因表达的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Trends in Biochemical Sciences
Trends in Biochemical Sciences 生物-生化与分子生物学
CiteScore
22.90
自引率
0.70%
发文量
148
审稿时长
6-12 weeks
期刊介绍: For over 40 years, Trends in Biochemical Sciences (TIBS) has been a leading publication keeping readers informed about recent advances in all areas of biochemistry and molecular biology. Through monthly, peer-reviewed issues, TIBS covers a wide range of topics, from traditional subjects like protein structure and function to emerging areas in signaling and metabolism. Articles are curated by the Editor and authored by top researchers in their fields, with a focus on moving beyond simple literature summaries to providing novel insights and perspectives. Each issue primarily features concise and timely Reviews and Opinions, supplemented by shorter articles including Spotlights, Forums, and Technology of the Month, as well as impactful pieces like Science & Society and Scientific Life articles.
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