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将液泡膜转运蛋白Ypq1纯化并重组到蛋白脂质体中的实验方案。

Protocol for purifying and reconstituting a vacuole membrane transporter Ypq1 into proteoliposomes.

作者信息

Arines Felichi Mae, Wielenga Aleksander, Stockbridge Randy B, Li Ming

机构信息

Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.

Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.

出版信息

STAR Protoc. 2024 Dec 20;5(4):103483. doi: 10.1016/j.xpro.2024.103483. Epub 2024 Dec 10.

DOI:10.1016/j.xpro.2024.103483
PMID:39661504
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11697543/
Abstract

Studying the biochemical function of membrane transporters is important in understanding the biology of transporter-laden organelles such as lysosomes and vacuoles. We present a protocol for overexpressing, purifying, and reconstituting a vacuole membrane transporter Ypq1 into proteoliposomes and describe steps to measure transport activity using radioactive substrates. The protocols established here can be used to study other vacuolar or lysosomal membrane transporters. For complete details on the use and execution of this protocol, please refer to Arines et al..

摘要

研究膜转运蛋白的生化功能对于理解诸如溶酶体和液泡等富含转运蛋白的细胞器的生物学特性至关重要。我们提供了一种将液泡膜转运蛋白Ypq1过表达、纯化并重构到蛋白脂质体中的方案,并描述了使用放射性底物测量转运活性的步骤。此处建立的方案可用于研究其他液泡或溶酶体膜转运蛋白。有关本方案使用和执行的完整详细信息,请参考阿林斯等人的文献。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/7c58bc7ddfdc/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/773ddd1d4849/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/90df731df732/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/1b21d89ce646/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/8cf9f03a6ecf/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/f2a052842774/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/a6e3e8b81754/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/cad50616fb02/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/7199dedc2c9f/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/ab152f1de4ea/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/7c58bc7ddfdc/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/773ddd1d4849/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/90df731df732/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/1b21d89ce646/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/8cf9f03a6ecf/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/f2a052842774/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/a6e3e8b81754/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/cad50616fb02/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/7199dedc2c9f/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/ab152f1de4ea/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9526/11697543/7c58bc7ddfdc/gr9.jpg

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本文引用的文献

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Mol Biol Cell. 2024 Mar 1;35(3):ar28. doi: 10.1091/mbc.E23-06-0259. Epub 2023 Dec 20.
2
ER-associated degradation in cystinosis pathogenesis and the prospects of precision medicine.胱氨酸病发病机制中的内质网相关降解和精准医学的前景。
J Clin Invest. 2023 Oct 2;133(19):e169551. doi: 10.1172/JCI169551.
3
Structure and mechanism of human cystine exporter cystinosin.人胱氨酸输出蛋白cystinosin 的结构与机制。
Cell. 2022 Sep 29;185(20):3739-3752.e18. doi: 10.1016/j.cell.2022.08.020. Epub 2022 Sep 15.
4
An optimized protocol to analyze membrane protein degradation in yeast using quantitative western blot and flow cytometry.使用定量 Western blot 和流式细胞术分析酵母中膜蛋白降解的优化方案。
STAR Protoc. 2022 Apr 4;3(2):101274. doi: 10.1016/j.xpro.2022.101274. eCollection 2022 Jun 17.
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A  conserved ubiquitin- and ESCRT-dependent pathway internalizes human lysosomal membrane proteins for degradation.一种保守的泛素化和 ESCRT 依赖性途径可内化人类溶酶体膜蛋白进行降解。
PLoS Biol. 2021 Jul 23;19(7):e3001361. doi: 10.1371/journal.pbio.3001361. eCollection 2021 Jul.
6
ESCRT, not intralumenal fragments, sorts ubiquitinated vacuole membrane proteins for degradation.ESCRT,而不是管腔内片段,将泛素化的液泡膜蛋白分拣进行降解。
J Cell Biol. 2021 Aug 2;220(8). doi: 10.1083/jcb.202012104. Epub 2021 May 28.
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A selective transmembrane recognition mechanism by a membrane-anchored ubiquitin ligase adaptor.一种膜锚定泛素连接酶衔接蛋白的选择性跨膜识别机制。
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