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首页> 外文期刊>Annual review of cell and developmental biology >Protein Quality Control and Lipid Droplet Metabolism
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Protein Quality Control and Lipid Droplet Metabolism

机译:蛋白质质量控制和脂液滴代谢

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摘要

Lipid droplets (LDs) are endoplasmic reticulum–derived organelles that consist of a core of neutral lipids encircled by a phospholipid monolayer decorated with proteins. As hubs of cellular lipid and energy metabolism, LDs are inherently involved in the etiology of prevalent metabolic diseases such as obesity and nonalcoholic fatty liver disease. The functions of LDs are regulated by a unique set of associated proteins, the LD proteome, which includes integral membrane and peripheral proteins. These proteins control key activities of LDs such as triacylglycerol synthesis and breakdown, nutrient sensing and signal integration, and interactions with other organelles. Here we review the mechanisms that regulate the composition of the LD proteome, such as pathways that mediate selective and bulk LD protein degradation and potential connections between LDs and cellular protein quality control.
机译:脂质液滴(LDS)是内质网衍生的细胞器,其由由用蛋白质装饰的磷脂单层环绕的中性脂质的核心组成。 作为细胞脂质和能量代谢的集线器,LD本身涉及普遍代谢疾病的病因,例如肥胖和非酒精性脂肪肝病。 LDS的功能由一组独特的相关蛋白质,LD蛋白质组调节,包括整体膜和外周蛋白。 这些蛋白质控制LDS的关键活性,如三酰基甘油合成和分解,营养传感和信号集成,以及与其他细胞器的相互作用。 在这里,我们审查了调节LD蛋白质组成的组成的机制,例如介导选择性和批量LD蛋白质降解和LDS和细胞蛋白质质量控制之间的潜在连接的途径。

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