Inter-organelle lipid transfer: a channel model for Vps13 and chorein-N motif proteins.

Inter-organelle lipid transfer: a channel model for Vps13 and chorein-N motif proteins.
复制标题

DOI:
10.1016/j.ceb.2020.02.008
复制
发表时间:
2020-08
影响因子:
7.5
通讯作者:
Reinisch KM
Reinisch KM
中科院分区:
生物学2区
文献类型:
--
作者:
Lees JA;Reinisch KM

文献摘要

参考文献

被引文献

相似文献

膜接触位点,其中两个细胞器非常接近,是细胞膜稳态的关键调节剂,在信号传导,脂质代谢和离子动力学中起作用。越来越多的专门的脂质转移蛋白在这些位点进行脂质交换。目前表征的真核脂质转运蛋白是穿梭物,其通常从供体细胞器的膜提取单一脂质,在通过胞质溶胶的转运期间溶解它,并将它存款在受体细胞器膜中。在这里,我们强调最近确定的chorein_N家族的脂质转运蛋白,包括Vps13蛋白和自噬蛋白Atg2。这些是细长的蛋白质,不同于先前表征的转运蛋白,一次结合数十种脂质。它们具有延长的通道,最有可能衬有疏水残基。我们讨论了它们不是穿梭机而是膜之间的桥梁的可能性,脂质通过疏水通道穿越细胞质。
Membrane contact sites, where two organelles are in close proximity, are critical regulators of cellular membrane homeostasis, with roles in signaling, lipid metabolism, and ion dynamics. A growing catalog of specialized lipid transfer proteins carry out lipid exchange at these sites. Currently characterized eukaryotic lipid transport proteins are shuttles that typically extract a single lipid from the membrane of the donor organelle, solubilize it during transport through the cytosol, and deposit it in the acceptor organelle membrane. Here we highlight the recently identified chorein_N family of lipid transporters, including the Vps13 proteins and the autophagy protein Atg2. These are elongated proteins that, distinct from previously characterized transport proteins, bind tens of lipids at once. They feature an extended channel, most likely lined with hydrophobic residues. We discuss the possibility that they are not shuttles but instead are bridges between membranes, with lipids traversing the cytosol via the hydrophobic channel.
DOI: 10.1016/j.cell.2013.05.026
发表时间: 2013-06-20
期刊: Cell
影响因子: 64.5
作者:
Giordano F;Saheki Y;Idevall-Hagren O;Colombo SF;Pirruccello M;Milosevic I;Gracheva EO;Bagriantsev SN;Borgese N;De Camilli P
通讯作者: De Camilli P
DOI: 10.1194/jlr.m072959
发表时间: 2017-03-01
影响因子: 6.5
作者:
Kannan, Muthukumar;Lahiri, Sujoy;Prinz, William A.
通讯作者: Prinz, William A.
DOI: 10.1083/jcb.201710116
发表时间: 2018-08-06
期刊: The Journal of cell biology
影响因子: --
作者:
Gómez-Sánchez R;Rose J;Guimarães R;Mari M;Papinski D;Rieter E;Geerts WJ;Hardenberg R;Kraft C;Ungermann C;Reggiori F
通讯作者: Reggiori F
DOI: 10.7554/elife.45777
发表时间: 2019-07-04
期刊: ELIFE
影响因子: 7.7
作者:
Maeda, Shintaro;Otomo, Chinatsu;Otomo, Takanori
通讯作者: Otomo, Takanori
DOI: 10.1016/j.devcel.2018.05.011
发表时间: 2018-06-04
期刊: DEVELOPMENTAL CELL
影响因子: 11.8
作者:
Montoro, Ayelen Gonzalez;Auffarth, Kathrin;Ungermann, Christian
通讯作者: Ungermann, Christian