Lipids at membrane contact sites: cell signaling and ion transport
نویسندگان
چکیده
منابع مشابه
OSBP-Related Protein Family: Mediators of Lipid Transport and Signaling at Membrane Contact Sites.
Oxysterol-binding protein (OSBP) and its related protein homologs, ORPs, constitute a conserved family of lipid-binding/transfer proteins (LTPs) expressed ubiquitously in eukaryotes. The ligand-binding domain of ORPs accommodates cholesterol and oxysterols, but also glycerophospholipids, particularly phosphatidylinositol-4-phosphate (PI4P). ORPs have been implicated as intracellular lipid senso...
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The red cell in man is a biconcave disk, some 8.4/z in diameter, 2.4 # thick at its widest portion, and 1/z thick at its narrowest. I t is bounded by a membrane primarily composed of protein and lipid, the latter sufficient in amount to cover the red cell with a layer two molecules thick. The lipid layer is bounded on the outside, and possibly on the inside, by a layer of protein. The thickness...
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Membrane contact sites (MCSs) function to facilitate the formation of membrane domains composed of specialized lipids, proteins, and nucleic acids. In cells, membrane domains regulate membrane dynamics and biochemical and signaling pathways. We and others identified a highly conserved family of sterol transport proteins (Ltc/Lam) localized at diverse MCSs. In this study, we describe data indica...
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We discuss various models of ion transport through cell membrane channels. Recent experimental data shows that sizes of ion channels are compared to those of ions and that only few ions may be simultaneously in any single channel. Theoretical description of ion transport in such channels should therefore take into account interactions between ions and between ions and channel proteins. This is ...
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StAR-related lipid transfer domain-3 (STARD3) is a sterol-binding protein that creates endoplasmic reticulum (ER)-endosome contact sites. How this protein, at the crossroad between sterol uptake and synthesis pathways, impacts the intracellular distribution of this lipid was ill-defined. Here, by using in situ cholesterol labeling and quantification, we demonstrated that STARD3 induces choleste...
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ژورنال
عنوان ژورنال: EMBO reports
سال: 2017
ISSN: 1469-221X,1469-3178
DOI: 10.15252/embr.201744331