Caveolins and Caveolae

Caveolins and Caveolae PDF Author: Jean-François Jasmin
Publisher: Springer
ISBN: 9781461412212
Category : Medical
Languages : en
Pages : 0

Get Book

Book Description
Caveolae are 50-100 nm flask-shaped invaginations of the plasma membrane that are primarily composed of cholesterol and sphingolipids. Using modern electron microscopy techniques, caveolae can be observed as omega-shaped invaginations of the plasma membrane, fully-invaginated caveolae, grape-like clusters of interconnected caveolae (caveosome), or as transcellular channels as a consequence of the fusion of individual caveolae. The caveolin gene family consists of three distinct members, namely Cav-1, Cav-2 and Cav-3. Cav-1 and Cav-2 proteins are usually co-expressed and particularly abundant in epithelial, endothelial, and smooth muscle cells as well as adipocytes and fibroblasts. On the other hand, the Cav-3 protein appears to be muscle-specific and is therefore only expressed in smooth, skeletal and cardiac muscles. Caveolin proteins form high molecular weight homo- and/or hetero-oligomers and assume an unusual topology with both their N- and C-terminal domains facing the cytoplasm.

Caveolins and Caveolae

Caveolins and Caveolae PDF Author: Jean-François Jasmin
Publisher: Springer
ISBN: 9781461412212
Category : Medical
Languages : en
Pages : 0

Get Book

Book Description
Caveolae are 50-100 nm flask-shaped invaginations of the plasma membrane that are primarily composed of cholesterol and sphingolipids. Using modern electron microscopy techniques, caveolae can be observed as omega-shaped invaginations of the plasma membrane, fully-invaginated caveolae, grape-like clusters of interconnected caveolae (caveosome), or as transcellular channels as a consequence of the fusion of individual caveolae. The caveolin gene family consists of three distinct members, namely Cav-1, Cav-2 and Cav-3. Cav-1 and Cav-2 proteins are usually co-expressed and particularly abundant in epithelial, endothelial, and smooth muscle cells as well as adipocytes and fibroblasts. On the other hand, the Cav-3 protein appears to be muscle-specific and is therefore only expressed in smooth, skeletal and cardiac muscles. Caveolin proteins form high molecular weight homo- and/or hetero-oligomers and assume an unusual topology with both their N- and C-terminal domains facing the cytoplasm.

Caveolins and Caveolae

Caveolins and Caveolae PDF Author: Springer
Publisher:
ISBN: 9781461412236
Category :
Languages : en
Pages : 208

Get Book

Book Description


Lipid Rafts and Caveolae

Lipid Rafts and Caveolae PDF Author: Christopher J. Fielding
Publisher: John Wiley & Sons
ISBN: 3527607501
Category : Science
Languages : en
Pages : 294

Get Book

Book Description
This keenly awaited first overview of the field represents a complete guide to the structure and function of the most important mammalian cell membrane organelles. Filling a huge gap in the primary literature, this book is the first to cover the subject in detail. Following an introduction by Kai Simons, the discoverer of lipid rafts and the most prominent scientist in the field, chapters include: Historical background Distinct structures and functions Structural basis Signaling Viral entry and virion budding Cholesterol transport Caveolins Lipid shells Cell polarity and intracellular trafficking Cancer cells Of prime importance to molecular and cell biologists, biochemists, membrane scientists, cancer researchers, and virologists.

Caveolins and Caveolae

Caveolins and Caveolae PDF Author: Jean-François Jasmin
Publisher: Springer Science & Business Media
ISBN: 1461412226
Category : Medical
Languages : en
Pages : 199

Get Book

Book Description
Caveolae are 50-100 nm flask-shaped invaginations of the plasma membrane that are primarily composed of cholesterol and sphingolipids. Using modern electron microscopy techniques, caveolae can be observed as omega-shaped invaginations of the plasma membrane, fully-invaginated caveolae, grape-like clusters of interconnected caveolae (caveosome), or as transcellular channels as a consequence of the fusion of individual caveolae. The caveolin gene family consists of three distinct members, namely Cav-1, Cav-2 and Cav-3. Cav-1 and Cav-2 proteins are usually co-expressed and particularly abundant in epithelial, endothelial, and smooth muscle cells as well as adipocytes and fibroblasts. On the other hand, the Cav-3 protein appears to be muscle-specific and is therefore only expressed in smooth, skeletal and cardiac muscles. Caveolin proteins form high molecular weight homo- and/or hetero-oligomers and assume an unusual topology with both their N- and C-terminal domains facing the cytoplasm.

Encyclopedia of Signaling Molecules

Encyclopedia of Signaling Molecules PDF Author:
Publisher:
ISBN: 9781461464389
Category :
Languages : en
Pages :

Get Book

Book Description


Caveolae

Caveolae PDF Author: Cedric M. Blouin
Publisher:
ISBN: 9781071607329
Category : Cell membranes
Languages : en
Pages : 218

Get Book

Book Description
This volume explores techniques used to study either the structure or the functions of caveolae and their components in several normal and pathophysiological situations. The chapters in this book cover topics such as selective visualization of caveolae by electron microscopy techniques; spatiotemporal analysis of caveolae dynamics and mechanics using live cell fluorescence microscopy; in vitro reconstitution such as liposomes and GPMVs as tools to study caveolin- and cavin-interacting partners; pulling of tethers from the cell plasma membrane using optical tweezers; and immunofluorescence-based analysis of caveolin-3 in the diagnostic management of neuromuscular diseases. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and comprehensive, Caveolae: Methods and Protocols is a valuable resource for both novice and expert researchers who are interested in discovering new roles or regulations of formed caveolae, and proteins composing their coat in various model organisms. .

Caveolae and Lipid Rafts: Roles in Signal Transduction and the Pathogenesis of Human Disease

Caveolae and Lipid Rafts: Roles in Signal Transduction and the Pathogenesis of Human Disease PDF Author: Edward Bittar
Publisher: Elsevier Science
ISBN: 9780444515001
Category : Science
Languages : en
Pages : 264

Get Book

Book Description
Caveolae (latin for little caves) are small structures found at the surface of cells. They are responsible for the regulation of important metabolic pathway. As a consequence, they may play a critical role in several human diseases such as atherosclerosis, cancer, diabetes, and muscular dystrophies. This book analyzes the role and function of caveolae in these aspects and serves as the first textbook currently available on caveolae/caveolin.

B Cell Receptor Signaling

B Cell Receptor Signaling PDF Author: Tomohiro Kurosaki
Publisher: Springer
ISBN: 3319261339
Category : Medical
Languages : en
Pages : 231

Get Book

Book Description
This volume details our current understanding of the architecture and signaling capabilities of the B cell antigen receptor (BCR) in health and disease. The first chapters review new insights into the assembly of BCR components and their organization on the cell surface. Subsequent contributions focus on the molecular interactions that connect the BCR with major intracellular signaling pathways such as Ca2+ mobilization, membrane phospholipid metabolism, nuclear translocation of NF-kB or the activation of Bruton’s Tyrosine Kinase and MAP kinases. These elements orchestrate cytoplasmic and nuclear responses as well as cytoskeleton dynamics for antigen internalization. Furthermore, a key mechanism of how B cells remember their cognate antigen is discussed in detail. Altogether, the discoveries presented provide a better understanding of B cell biology and help to explain some B cell-mediated pathogenicities, like autoimmune phenomena or the formation of B cell tumors, while also paving the way for eventually combating these diseases.

Membrane Dynamics and Domains

Membrane Dynamics and Domains PDF Author: Peter J. Quinn
Publisher: Springer Science & Business Media
ISBN: 1475758065
Category : Science
Languages : en
Pages : 502

Get Book

Book Description
The fluid-mosaic model of membrane structure formulated by Singer and Nicolson in the early 1970s has proven to be a durable concept in terms of the principles governing the organization of the constituent lipids and proteins. During the past 30 or so years a great deal of information has accumulated on the composition of various cell membranes and how this is related to the dif ferent functions that membranes perform. Nevertheless, the task of explaining particular functions at the molecular level has been hampered by lack of struc tural detail at the atomic level. The reason for this is primarily the difficulty of crystallizing membrane proteins which require strategies that differ from those used to crystallize soluble proteins. The unique exception is bacteriorhodopsin of the purple membrane of Halobacterium halobium which is interpolated into a membrane that is neither fluid nor in a mosaic configuration. To date only 50 or so membrane proteins have been characterised to atomic resolution by diffraction methods, in contrast to the vast data accumulated on soluble proteins. Another factor that has been difficult to explain is the reason why the lipid compliment of membranes is often extremely complex. Many hundreds of different molecular species of lipid can be identified in some membranes. Remarkably, the particular composition of each membrane appears to be main tained within relatively narrow limits and its identity distinguished from other morphologically-distinct membranes.

Molecular Regulation of Endocytosis

Molecular Regulation of Endocytosis PDF Author: Brian Ceresa
Publisher: BoD – Books on Demand
ISBN: 9535106627
Category : Science
Languages : en
Pages : 470

Get Book

Book Description
Molecular Regulation of Endocytosis is a compilation of scientific "short stories" about the entry of external substances into cells. As one can see from the chapters, endocytosis regulates diverse processes such as homeostasis of the cell, signal transduction, entry of pathogens and viruses. In addition to the experimental techniques embedded in each chapter, entire chapters are dedicated to experimental approaches that will be useful to all scientists and their model systems. For those more clinically oriented, the final chapters look to the future and ways of utilizing endocytic pathways for therapeutic purposes.