Biochemical Characterization and Structural Analysis of the Synaptic SNARE Complex

Biochemical Characterization and Structural Analysis of the Synaptic SNARE Complex PDF Author: Michelle Antoinette Poirier
Publisher:
ISBN:
Category :
Languages : en
Pages : 344

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Biochemical Characterization and Structural Analysis of the Synaptic SNARE Complex

Biochemical Characterization and Structural Analysis of the Synaptic SNARE Complex PDF Author: Michelle Antoinette Poirier
Publisher:
ISBN:
Category :
Languages : en
Pages : 344

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Book Description


Cumulated Index Medicus

Cumulated Index Medicus PDF Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1860

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Dissertation Abstracts International

Dissertation Abstracts International PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 942

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Handbook of Lipid Membranes

Handbook of Lipid Membranes PDF Author: Cyrus R. Safinya
Publisher: CRC Press
ISBN: 0429527810
Category : Medical
Languages : en
Pages : 800

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Book Description
This handbook provides a comprehensive overview of lipid membrane fundamentals and applications. It gives the fundamental physical and biochemical aspects of membrane-related processes in living cells, and then relates them to how scientists are building bioinspired, artifical membrane-based systems such as gene delivery vehicles and synthetic membrane interfaces. It highlights the driving mechanism behind lipid self-assembly, membrane shape evolution, and vesicle trafficing, as well as the role of lipid membrane composition in signalling and the structural aspects of membranes in cellular integrity. Key Features: Includes a broad overview on the role of lipids as structural components of membranes, energy storage molecules, and signaling molecules. Covers lipids in signaling and the role of lipids in everyday life, from diet and health to cosmetics and pharmaceuticals. Discusses applications in nanotechnology and biomedicine, including liposomes in drug discovery, lipids for in vivo therapeutics, lipid-based sensors, artificial biointerfaces, and synthetic polymers. Includes an exciting section that explores the practical use of Archae lipids, lipids and the origins of life, and future outlook for the field. This book is a great companion for professionals in physics, biochemistry, physical chemistry and material sciences.

Structural and Functional Organization of the Synapse

Structural and Functional Organization of the Synapse PDF Author: Johannes W. Hell
Publisher: Springer Science & Business Media
ISBN: 0387772324
Category : Medical
Languages : en
Pages : 801

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Book Description
This new Springer volume, which comes complete with a free DVD, is a comprehensive and detailed overview of the synapse with emphasis on the glutamatergic synapse. Most chapters relate the synapse’s functional aspects to its molecular mechanisms. This approach shows which mechanisms are characterized on both the functional and structural level and can thus be considered firmly established. It’s an important text for neuroscientists and disease-oriented clinicians in neurology.

The Septin CDCrel-1 [microform] : Protein Associations, Modifications and Effects on Exocytosis

The Septin CDCrel-1 [microform] : Protein Associations, Modifications and Effects on Exocytosis PDF Author: Crestina L. Beites
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN: 9780612915961
Category :
Languages : en
Pages : 452

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Book Description
SNARE proteins mediate the docking and/or fusion of the vesicle with the plasma membrane. However, it is not clearly understood how this process is regulated. In a search for potential SNARE regulators, we have identified a novel snare interacting protein, the septin CDCrel-1. Septins were first identified as filamentous proteins required for cytokinesis in yeast. However, in mammals little is known about their functions. I show here that cdcrel-1 is predominantly expressed in the brain where it associates with membranes via binding to syntaxin 1A. Wildtype CDCrel-1 transfected into HIT-T15 cells inhibits secretion while mutated forms of CDCrel-1 potentiate secretion, suggesting that cdcrel-1 may be regulating vesicle targeting and/or fusion events. I further map the CDCrel-1 domains important for syntaxin binding and investigate the ability of CDCrel-1 to bind to syntaxin when in various SNARE complexes. CDCrel-1 can bind syntaxin in a SNARE complex, but its binding is occluded by alpha-SNAP. This suggests that CDCrel-1 may act as a novel filamentous element, regulating the delivery and/or fusion of vesicles to the presynaptic membrane through its interaction with syntaxin and the 7S complex. The regulation of filaments may be via post-translational modifications. Indeed we have discovered a novel interaction between SUMO E3 PIAS proteins and CDCrel-1. The conjugation of SUMO to substrates is dependent upon an E1 and E2, whereas specificity is mediated by an E3. Although several SUMO-1 substrates have been characterized, conjugation solely by SUMO-2/3 has not been described. Here I describe the colocalization of CDCrel-1 with SUMO-2 and 3 but not SUMO-1. Transfection of SUMO-2/3 but not SUMO-1 causes a reorganization of CDCrel-1 distribution in CHO cells. Furthermore, CDCrel-1 sequesters the nuclear pool of SUMO-2/3 and of the E2 Ubc9 but not SUMO1 into the cytoplasm. Sumoylation of CDCrel-l is shown in vivo and putative SUMO modification sites on CDCrel-1 are investigated by deletion of lysine residues. These experiments strongly suggest that CDCrel-1 is sumoylated specifically by SUMO-2/3. Sumoylation of CDCrel-1 may therefore play a regulatory role in secretion and septin filament formation. Future work will be aimed at determining the functional significance of SUMO modified CDCrel-1.

Index Medicus

Index Medicus PDF Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1876

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Book Description
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.

Clostridial Neurotoxins

Clostridial Neurotoxins PDF Author: Cesare Montecucco
Publisher: Springer Science & Business Media
ISBN: 3642851738
Category : Medical
Languages : en
Pages : 283

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Book Description
Tetanus has been known from the very beginning of medical literature since it was first described by Hyppocrates of Cos in the fifth century B.C. For 24 centuries it was considered a neuro logical disease until the breakthrough of CARLE and RATIONE (1884) who demonstrated its infectious etiology. Following the establishment of purified cultures of Clostridium tetani(KITASATO 1889), FABER (1890), and TIZZONI and CATIANI (1890) demon strated that the disease is actually an intoxication caused by a proteic neurotoxin. This toxin was shown by BRUSHCHETIINI (1892) to move retroaxonally and to act at the spinal cord level. Soon thereafter VAN ERMENGEN (1897) demonstrated that botu lism is also due to intoxication with a protein toxin produced by bacteria of the genus Clostridium. These bacteria and their spores and ubiquitous, and the majority of them do not produce neurotoxins. The selective advantage of producing such potent toxin is still a matter of speculation (see Popoff, this volume). The next major advance was the discovery that tetanus neurotoxin 1 can be converted by formaldehyde treatment to a nonpathogenic but still fully immunogenic form, and that this can be used successfully as a vaccine to prevent tetanus (RAMON and DESCOMBEY 1925). Similar vaccines (toxoids) can be prepared with botulism neurotoxins (see MiDDLEBROOK and BROWN, this volume). The prevention oftetanus by vaccination (see Galatzka and Gasse, this volume) is one of the great successes of basic research coupled with an efficient public medicine service.

Encyclopedia of Cell Biology

Encyclopedia of Cell Biology PDF Author:
Publisher: Academic Press
ISBN: 0123947960
Category : Science
Languages : en
Pages : 2972

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Book Description
The Encyclopedia of Cell Biology, Four Volume Set offers a broad overview of cell biology, offering reputable, foundational content for researchers and students across the biological and medical sciences. This important work includes 285 articles from domain experts covering every aspect of cell biology, with fully annotated figures, abundant illustrations, videos, and references for further reading. Each entry is built with a layered approach to the content, providing basic information for those new to the area and more detailed material for the more experienced researcher. With authored contributions by experts in the field, the Encyclopedia of Cell Biology provides a fully cross-referenced, one-stop resource for students, researchers, and teaching faculty across the biological and medical sciences. Fully annotated color images and videos for full comprehension of concepts, with layered content for readers from different levels of experience Includes information on cytokinesis, cell biology, cell mechanics, cytoskeleton dynamics, stem cells, prokaryotic cell biology, RNA biology, aging, cell growth, cell Injury, and more In-depth linking to Academic Press/Elsevier content and additional links to outside websites and resources for further reading A one-stop resource for students, researchers, and teaching faculty across the biological and medical sciences

Neurotransmitter Release

Neurotransmitter Release PDF Author: Hugo J. Bellen
Publisher: Oxford University Press, USA
ISBN:
Category : Medical
Languages : en
Pages : 466

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Book Description
This book provides the reader with background information on neurotransmitter release. Emphasis is placed on the rationale by which proteins are assigned specific functions rather than just providing facts about function.