Ubiquitin And The Brain Roles Of Proteolysis In The Normal And Abnormal Nervous System PDF Download
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Author | : Ashok N. Hegde |
Publisher | : Frontiers Media SA |
Total Pages | : 243 |
Release | : 2017-10-10 |
Genre | : |
ISBN | : 2889452859 |
Download Ubiquitin and the Brain: Roles of Proteolysis in the Normal and Abnormal Nervous System Book in PDF, ePub and Kindle
Proteolysis by the ubiquitin-proteasome pathway (UPP) in the nervous system has been extensively studied both in the context of normal physiological function as well as abnormal pathological conditions. Although ubiquitin was used as a marker of brain pathology, the normal functions of the UPP were not studied much in the nervous system until the 1990s. The early investigations focused on synaptic plasticity which was followed by studies on the roles of protein degradation in the development of the nervous system. Research on the role of abnormal roles of the UPP follows a parallel trajectory. Since the 2000s, the field has grown to encompass many subareas of research and several model systems. Despite the progress made, many unanswered questions still remain. For example, there are many unknowns about the precise spatial and temporal control of protein degradation in the normal nervous system. With respect to the roles of proteolysis in brain pathology a major challenge is to elucidate the connection between impaired protein degradation and disease progression. In addition, in-depth studies of the roles of ubiquitin-proteasome-mediated proteolysis in neurodegenerative diseases are promising in identifying therapeutic targets. This ebook contains original research papers and insightful reviews that cover several aspects of proteolysis by the UPP and its physiological as well as pathological functions in the nervous system.
Author | : Mustafa Naziroglu |
Publisher | : Frontiers Media SA |
Total Pages | : 158 |
Release | : 2021-05-03 |
Genre | : Science |
ISBN | : 2889667332 |
Download Involvements of TRP Channels, Oxidative Stress and Apoptosis in Neurodegenerative Diseases Book in PDF, ePub and Kindle
Author | : Crestina L. Beites |
Publisher | : National Library of Canada = Bibliothèque nationale du Canada |
Total Pages | : 452 |
Release | : 2004 |
Genre | : |
ISBN | : 9780612915961 |
Download The Septin CDCrel-1 [microform] : Protein Associations, Modifications and Effects on Exocytosis Book in PDF, ePub and Kindle
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.
Author | : Colin L. Masters |
Publisher | : |
Total Pages | : 16 |
Release | : 1979 |
Genre | : Creutzfeldt-Jakob disease |
ISBN | : |
Download Subacute Spongiform Encephalopathy (Creutzfeldt-Jakob Disease) Book in PDF, ePub and Kindle
Author | : J. Robin Harris |
Publisher | : Springer Nature |
Total Pages | : 580 |
Release | : 2020-11-30 |
Genre | : Science |
ISBN | : 3030589714 |
Download Macromolecular Protein Complexes III: Structure and Function Book in PDF, ePub and Kindle
This book covers important topics such as the dynamic structure and function of the 26S proteasome, the DNA replication machine: structure and dynamic function and the structural organization and protein–protein interactions in the human adenovirus capsid, to mention but a few. The 18 chapters included here, written by experts in their specific field, are at the forefront of scientific knowledge. The impressive integration of structural data from X-ray crystallography with that from cryo-electron microscopy is apparent throughout the book. In addition, functional aspects are also given a high priority. Chapter 1 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Author | : |
Publisher | : ScholarlyEditions |
Total Pages | : 671 |
Release | : 2013-01-10 |
Genre | : Science |
ISBN | : 1481645889 |
Download Issues in Biochemistry and Biophysics Research: 2012 Edition Book in PDF, ePub and Kindle
Issues in Biochemistry and Biophysics Research: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Biological Crystallography. The editors have built Issues in Biochemistry and Biophysics Research: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Biological Crystallography in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Biochemistry and Biophysics Research: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author | : World Health Organization |
Publisher | : World Health Organization |
Total Pages | : 233 |
Release | : 2006 |
Genre | : Medical |
ISBN | : 9241563362 |
Download Neurological Disorders Book in PDF, ePub and Kindle
Although there are several gaps in understanding the many issues related to neurological disorders, we know enough to be able to shape effective policy responses to some of the most common. This book describes and discusses the increasing public health impact of common neurological disorders such as dementia, epilepsy, headache disorders, multiple sclerosis, neuroinfections, neurological disorders associated with malnutrition, pain associated with neurological disorders, Parkinson's disease, stroke and traumatic brain injuries. It provides information and advice on public health interventions that may reduce their occurrence and consequences, and offers health professionals and planners the opportunity to assess the burden caused by these disorders. The clear message that emerges is that unless immediate action is taken globally, the neurological burden is likely to become an increasingly serious and unmanageable.
Author | : Daniel Laskowitz |
Publisher | : CRC Press |
Total Pages | : 388 |
Release | : 2016-04-21 |
Genre | : Medical |
ISBN | : 1498766579 |
Download Translational Research in Traumatic Brain Injury Book in PDF, ePub and Kindle
Traumatic brain injury (TBI) remains a significant source of death and permanent disability, contributing to nearly one-third of all injury related deaths in the United States and exacting a profound personal and economic toll. Despite the increased resources that have recently been brought to bear to improve our understanding of TBI, the developme
Author | : Nancy Y. Ip |
Publisher | : Springer Science & Business Media |
Total Pages | : 326 |
Release | : 2009-02-28 |
Genre | : Medical |
ISBN | : 0387788875 |
Download Cyclin Dependent Kinase 5 (Cdk5) Book in PDF, ePub and Kindle
Cyclin Dependent Kinase 5 provides a comprehensive and up-to-date collection of reviews on the discovery, signaling mechanisms and functions of Cdk5, as well as the potential implication of Cdk5 in the treatment of neurodegenerative diseases. Since the identification of this unique member of the Cdk family, Cdk5 has emerged as one of the most important signal transduction mediators in the development, maintenance and fine-tuning of neuronal functions and networking. Further studies have revealed that Cdk5 is also associated with the regulation of neuronal survival during both developmental stages and in neurodegenerative diseases. These observations indicate that precise control of Cdk5 is essential for the regulation of neuronal survival. The pivotal role Cdk5 appears to play in both the regulation of neuronal survival and synaptic functions thus raises the interesting possibility that Cdk5 inhibitors may serve as therapeutic treatment for a number of neurodegenerative diseases.
Author | : Gabor G. Kovacs |
Publisher | : Cambridge University Press |
Total Pages | : 320 |
Release | : 2017-12-13 |
Genre | : Medical |
ISBN | : 1316337650 |
Download Neuropathology of Neurodegenerative Diseases Book in PDF, ePub and Kindle
This practical guide to the diagnosis of neurodegenerative diseases discusses modern molecular techniques, morphological classification, fundamentals of clinical symptomology, diagnostic pitfalls and immunostaining protocols. It is based on the proteinopathy concept of neurodegenerative disease, which has influenced classification and provides new strategies for therapy. Numerous high-quality images, including histopathology photomicrographs and neuroradiology scans, accompany the description of morphologic alterations and interpretation of immunoreactivities. Diagnostic methods and criteria are placed within recent developments in neuropathology, including the now widespread application of immunohistochemistry. To aid daily practice, the guide includes diagnostic algorithms and offers personal insights from experienced experts in the field. Special focus is given to the way brain tissue should be handled during diagnosis. This is a must-have reference for medical specialists and specialist medical trainees in the fields of pathology, neuropathology and neurology working with neuropathologic features of neurodegenerative diseases.