Phosphoinositide transport and metabolism at membrane contact sites.

Phosphoinositide transport and metabolism at membrane contact sites.
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DOI:
10.1016/j.bbalip.2021.159107
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发表时间:
2022-03
期刊:
Biochimica et biophysica acta. Molecular and cell biology of lipids
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磷脂酰肌醇是一个信号脂质家族,在调节所有细胞膜的膜-胞质溶胶界面处的蛋白质功能中发挥重要作用。磷酸肌醇代谢酶的突变或改变强调了它们的重要性,导致许多发育、神经退行性和代谢疾病,这些疾病对人类健康是毁灭性的。除脂质酶外,磷脂酰肌醇代谢在膜接触位点(MCS)受到调节和控制。MCS通常位于ER和其他细胞膜之间的紧密对立区域,是参与广泛通信以影响细胞器稳态的非囊泡脂质转运门户。本文综述了脂质转运,特别是磷脂酰肌醇脂质转运和代谢在MCS。
Phosphoinositides are a family of signaling lipids that play a profound role in regulating protein function at the membrane-cytosol interface of all cellular membranes. Underscoring their importance, mutations or alterations in phosphoinositide metabolizing enzymes lead to host of developmental, neurodegenerative, and metabolic disorders that are devastating for human health. In addition to lipid enzymes, phosphoinositide metabolism is regulated and controlled at membrane contact sites (MCS). Regions of close opposition typically between the ER and other cellular membranes, MCS are non-vesicular lipid transport portals that engage in extensive communication to influence organelle homeostasis. This review focuses on lipid transport, specifically phosphoinositide lipid transport and metabolism at MCS.
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