Caveolae

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  • This volume is the first book-length survey of caveolae and lipid rafts. Interest has developed rapidly in the role of these surface microdomains in such diverse fields as transmembrane signaling, cell locomotion, vascular relaxation, senescence, and the uptake and exit from cells of viruses and bacteria. Individual chapters in this volume cover areas as diverse as the forces that induce and maintain membrane invaginations, and the clinical relevance of multiprotein complexes at the cell surface, defects in which are associated with cancer, and Alzheimer’s and prion-dependent diseases....

    pdf295p chuyenphimbuon 21-07-2012 42 11   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: The caveolae-mediated sv40 entry pathway bypasses the golgi complex en route to the endoplasmic reticulu

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  • Caveolae are nearly ubiquitous plasma membrane domains that in adipo-cytes vary in size between 25 and 150 nm. They constitute sites of entry into the cell as well as platforms for cell signalling. We have previously reported that plasma membrane-associated caveolae that lack cell surface access can be identified by electron microscopy.

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  • It is now generally accepted that factor XII (FXII) binds to cellular surfaces in the vascular system. One of the suggested receptors of this binding is the glycosylphosphatidylinositol-anchored urokinase-like plasminogen activator (u-PAR) harbored in caveolae/lipid rafts. However, binding of FXII to human umbilical vein endothelial cells (HUVEC) has never been shown to be localized to these specialized mem-brane structures. Using microscopical techniques, we here report that FXII binds to specific patches of the HUVEC plasma membrane with a high density of caveolae....

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : The caveolae-mediated sv40 entry pathway bypasses the golgi complex en route to the endoplasmic reticulum

    pdf6p dauphong8 14-01-2012 28 2   Download

  • We havemade a comprehensive and quantitative analysis of the lipid composition of caveolae from primary rat fat cells and compared the composition of plasma membrane inside and outside caveolae. We isolated caveolae from purified plasmamembranesusingultrasonication incarbonatebuffer to disrupt the membrane, or extraction with nonionic detergent, followed by density gradient ultracentrifugation. The carbonate-isolated caveolae fraction was further immunopurified using caveolin antibodies.

    pdf9p dell39 03-04-2013 12 2   Download

  • Caveolae are plasma membrane invaginations with several functions, one of which appears to be to organize receptor mediated signalling. Here we report that in primary human subcutaneous adipocytes the insulin receptor was localized to caveolae by electron microscopy/immunogold detection and by isolating caveolae from plasma membranes.

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  • The caveolin gene family has three members in vertebrates: caveolin-1, caveolin-2, and caveolin-3. So far, most caveolin-related research has been conducted in mammals, but the proteins have also been found in other animals, including Xenopus laevis, Fugu rubripes, and Caenorhabditis elegans. Caveolins can serve as protein markers of caveolae (‘little caves’), invaginations in the plasma membrane 50-100 nanometers in

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  • In 1996, the Committee on Population of the National Research Council sponsored a novel workshop on the biodemography of aging, which resulted in the volume Between Zeus and the Salmon: The Biodemography of Longevity (National Research Council, 1997). The workshop and its report, which considered the continuing increases in human life span in a broad biological context, launched a new phase in studies of human aging at the population level.

    pdf389p mnemosyne75 02-02-2013 21 2   Download

  • The peptide hormone endothelin transmits various signals throughGprotein-coupled receptors, the endothelin type A (ETAR) and B (ETBR) receptors. Caveolae are specialized lipid rafts containing polymerized caveolins. We examined the interaction of ETBR with caveolin-1, expressed in Sf9, COS-1, and HEK293 cells, and its effects on the subcellular distribution and the signal transduction of ETBR.

    pdf12p fptmusic 16-04-2013 10 1   Download

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