The enigmatic ATP supply of the endoplasmic reticulum.

The enigmatic ATP supply of the endoplasmic reticulum.
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DOI:
10.1111/brv.12469
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发表时间:
2019-04
影响因子:
--
通讯作者:
Malli R
Malli R
中科院分区:
其他
文献类型:
--
作者:
Depaoli MR;Hay JC;Graier WF;Malli R

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内质网(endoplasmic reticulum,ER)是一种功能和形态复杂的细胞器,主要负责多种关键功能,包括蛋白质折叠、成熟和降解。此外,ER在脂质生物合成、动态Ca 2+储存和解毒中起重要作用。ER相关过程中的功能障碍是许多疾病的发生和发展的原因,如心力衰竭、癌症、神经退行性疾病和代谢紊乱。为了实现其许多重要功能,ER依赖于以腺苷-5 ′-三磷酸(ATP)形式的充足能量供应,这是主要的细胞能量来源。尽管ER驻留蛋白和关键ER相关过程的功能原理有了里程碑式的发现和澄清,但ER ATP转运的机制仍然有些神秘。在这里,我们总结了ER相关的ATP消耗过程,并概述了我们对ER能量供应的性质和功能的了解。
The endoplasmic reticulum (ER) is a functionally and morphologically complex cellular organelle largely responsible for a variety of crucial functions, including protein folding, maturation and degradation. Furthermore, the ER plays an essential role in lipid biosynthesis, dynamic Ca2+ storage, and detoxification. Malfunctions in ER‐related processes are responsible for the genesis and progression of many diseases, such as heart failure, cancer, neurodegeneration and metabolic disorders. To fulfill many of its vital functions, the ER relies on a sufficient energy supply in the form of adenosine‐5′‐triphosphate (ATP), the main cellular energy source. Despite landmark discoveries and clarification of the functional principles of ER‐resident proteins and key ER‐related processes, the mechanism underlying ER ATP transport remains somewhat enigmatic. Here we summarize ER‐related ATP‐consuming processes and outline our knowledge about the nature and function of the ER energy supply.
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