Download or read book Characterization of the Eukaryotic Initiation Factor 4B eiF4B written by Katherine Beglinger and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: For my dissertation work, I have focused on dissecting the mechanism and regulation of mRNA selection and recruitment to the human ribosome. I was interested in human eIF4B, which is a heavily phosphorylated, 69 kDa protein that promotes the mRNA helicase activity of eIF4A and interacts with the 43S pre-initiation complex. In Chapter 1, I introduce the mechanism by which translation initiation is regulated, focusing on control by post-translation modifications during growth and cellular stress. In Chapter 2, I describe a quantitative mass spectrometry method to characterize the site-specific phosphorylation changes that occur on eIF4G and eIF4B in response to mTOR inhibition in HeLa R19 cells. I also describe the development of a system to express and purify affinity tagged proteins from HeLa R19 stable cell lines. In addition to characterizing eIF4B phosphorylation dynamics, in Chapter 3 I characterize a novel 40S ribosomal subunit binding domain in eIF4B. I then described a cell-based assay I used to link this 40S binding domain to eIF4B's ability to associate with an mRNA. Described in Chapter 4, this method utilizes live cell fluorescence microscopy to track the ability of eIF4E, eIF4G, and eIF4B to accumulate into stress granules during oxidative stress. In Chapter 5, I characterize the conformation of eIF4B using ion mobility mass spectrometry and show that phosphorylation at Ser422 does not change its structure. In the final chapter, I outline the methods used to generate Flp-in T-REx HeLa R19 cell lines to stably express modified eIF4G and eIF4B constructs that are used in various experiments performed in this dissertation. My dissertation work builds upon the advances made to characterize phosphorylation sites on eIF4B to provide important mechanistic insight into the additional layer of regulation phosphorylation provides to control protein synthesis.
Download or read book Eukaryotic Initiation Factor 4B eIF4B written by David Shahbazian and published by . This book was released on 2008 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sp1 is Necessary for Maximal Transcription of the Eukaryotic Translation Initiation Factor 4b EIF4B Gene written by Dulce M. Alvarado and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eukaryotic translation initiation factor 4b (EIF4B) is a gene that encodes an RNA binding protein involved in the initiation step of protein synthesis. Phosphorylation and high protein levels of EIF4B have been associated with the development of tumorigenesis. Because EIF4B gene expression is essential for translation, the EIF4B putative promoter region was identified and characterized. [...]
Download or read book Translation Initiation Reconstituted Systems and Biophysical Methods written by and published by Academic Press. This book was released on 2007-10-23 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: For over fifty years the Methods in Enzymology series has been the critically aclaimed laboratory standard and one of the most respected publications in the field of biochemistry. The highly relevant material makes it an essential publication for researchers in all fields of life and related sciences. This volume, the second of three on the topic of Translation Initiation includes articles written by leaders in the field.
Download or read book Chromatin Signaling and Diseases written by Olivier Binda and published by Academic Press. This book was released on 2016-08-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromatin Signaling and Diseases covers the molecular mechanisms that regulate gene expression, which govern everything from embryonic development, growth, and human pathologies associated with aging, such as cancer. This book helps researchers learn about or keep up with the quickly expanding field of chromatin signaling. After reading this book, clinicians will be more capable of explaining the mechanisms of gene expression regulation to their patients to reassure them about new drug developments that target chromatin signaling mechanisms. For example, several epigenetic drugs that act on chromatin signaling factors are in clinical trials or even approved for usage in cancer treatments, Alzheimer's, and Huntington's diseases. Other epigenetic drugs are in development to regulate various class of chromatin signaling factors. To keep up with this changing landscape, clinicians and doctors will need to stay familiar with genetic advances that translate to clinical practice, such as chromatin signaling. Although sequencing of the human genome was completed over a decade ago and its structure investigated for nearly half a century, molecular mechanisms that regulate gene expression remain largely misunderstood. An emerging concept called chromatin signaling proposes that small protein domains recognize chemical modifications on the genome scaffolding histone proteins, facilitating the nucleation of enzymatic complexes at specific loci that then open up or shut down the access to genetic information, thereby regulating gene expression. The addition and removal of chemical modifications on histones, as well as the proteins that specifically recognize these, is reviewed in Chromatin Signaling and Diseases. Finally, the impact of gene expression defects associated with malfunctioning chromatin signaling is also explored. - Explains molecular mechanisms that regulate gene expression, which governs everything from embryonic development, growth, and human pathologies associated with aging - Educates clinicians and researchers about chromatin signaling, a molecular mechanism that is changing our understanding of human pathology - Explores the addition and removal of chemical modifications on histones, the proteins that specifically recognize these, and the impact of gene expression defects associated with malfunctioning chromatin signaling - Helps researchers learn about the quickly expanding field of chromatin signaling
Download or read book Translational Control of Gene Expression written by Nahum Sonenberg and published by CSHL Press. This book was released on 2001 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1996 publication of Translational Control, there has been fresh interest in protein synthesis and recognition of the key role of translation control mechanisms in regulating gene expression. This new monograph updates and expands the scope of the earlier book but it also takes a fresh look at the field. In a new format, the first eight chapters provide broad overviews, while each of the additional twenty-eight has a focus on a research topic of more specific interest. The result is a thoroughly up-to-date account of initiation, elongation, and termination of translation, control mechanisms in development in response to extracellular stimuli, and the effects on the translation machinery of virus infection and disease. This book is essential reading for students entering the field and an invaluable resource for investigators of gene expression and its control.
Download or read book Systems Biology of Cancer written by Sam Thiagalingam and published by Cambridge University Press. This book was released on 2015-04-09 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the current systems biology-based knowledge and the experimental approaches for deciphering the biological basis of cancer.
Download or read book Progressive Brain Disorders in Childhood written by Juan M. Pascual and published by Cambridge University Press. This book was released on 2017-04-20 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of childhood neurodegenerative and other progressive but non-degenerative disorders to guide their diagnosis and management.
Download or read book The Oxford Handbook of Neuronal Protein Synthesis written by Wayne S. Sossin and published by Oxford University Press. This book was released on 2021-04-15 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translational control in the nervous system is important. Many physiological processes in the nervous system depend on accurate control of the proteome that is mediated through protein synthetic mechanisms and thus, the nervous system is very sensitive to dysregulation of translational control. The Oxford Handbook of Neuronal Protein Synthesis reviews the mechanisms of translational control used by the nervous system, as well as how important nervous system functions, such as plasticity and homeostasis, depend on accurate translational control. The handbook extensively covers how dysregulation of protein synthesis can manifest itself in many distinct pathological processes including neurodevelopmental, neuropsychiatric, and neurodegenerative diseases. The handbook is comprehensive in its coverage of translational control mechanisms with particular focus on how these general control mechanisms are specifically utilized in the context of the cell biological constraints of the nervous system from both a mechanistic and systems perspective.
Download or read book Translation and Its Regulation in Cancer Biology and Medicine written by Armen Parsyan and published by Springer. This book was released on 2014-10-13 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, for the first time, comprehensively assembles and analyzes a large body of information on the role of the fundamental mechanism of the protein biosynthesis pathway, translation, in cancer biology. It systematically explores the function of the translation machinery and its regulation, including cell signaling, in the development, maintenance and progression of human cancer. The work presented here unveils the tremendous potential and applications of this vast and exciting branch of genetic, biochemical and molecular science in cancer medicine and drug development. Chapters contributed by experts in the field take the reader on a journey that starts with a dissection of the translation machinery and its regulation in norm and cancer. Later chapters characterize etiological and pathogenetic roles that translation plays in specific cancer types. Various aspects of diagnostic, prognostic and therapeutic significance of the translation machinery and its control in cancer are discussed. Readers will discover the importance of the process of translation and its regulatory mechanisms in physiology and cancer biology. The chapters and the numerous illustrations included here were contributed by expert scientists and clinicians from renowned academic and clinical establishments in Canada, the United States of America, the United Kingdom, Italy, France, Belgium, Spain, Germany and Australia. The book conveys information and knowledge that may interest a broad range of students and scholars ranging from basic scientists to clinicians and drug developers seeking to better understand the protein synthesis and its aberrations in cancer biology and cancer medicine.
Download or read book Protein Phosphorylation in Human Health written by Cai Huang and published by BoD – Books on Demand. This book was released on 2012-09-06 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: 15 chapters on protein phosphorylation and human health written by expert scientists. Covers most important research hot points, such as Akt, AMPK and mTOR. Bridges the basic protein phosphorylation pathways with human health and diseases. Detailed and comprehensive text with excellent figure illustration.
Download or read book Fluid Resuscitation written by Institute of Medicine and published by National Academies Press. This book was released on 1999-10-05 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, 20% of all injured combatants die on the battlefield before they can be evacuated to a field hospital. Blood lossâ€"hemorrhageâ€"is the single major cause of death among those killed in action whose lives might otherwise be saved. Fluid resuscitation and the treatment of hypovolemia (the abnormally decreased volume of circulating fluid in the body) offer the greatest opportunity for reducing mortality and morbidity associated with battlefield casualties. In Fluid Resuscitation, a committee of experts assess current resuscitation fluids and protocols for the treatment of combat casualties and make recommendations for future research. Chapters focus on the pathophysiology of acute hemorrhagic shock, experience with and complications of fluid resuscitation, novel approaches to the treatment of shock, protocols of care at the site of injury, and future directions for research. The committee explicitly describes the similarities and differences between acute medical care during combat and civilian emergency trauma care. Fluid Resuscitation should help energize and focus research in both civilian and military emergency care and help save the lives of citizens and soldiers alike.
Download or read book RNA Metabolism in Neurodegenerative Diseases written by Rita Sattler and published by Springer. This book was released on 2018-06-18 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become evident over the last years that abnormalities in RNA processing play a fundamental part in the pathogenesis of neurodegenerative diseases. Cellular viability depends on proper regulation of RNA metabolism and subsequent protein synthesis, which requires the interplay of many processes including transcription, pre--‐mRNA splicing, mRNA editing as well as mRNA stability, transport and translation. Dysfunction in any of these processes, often caused by mutations in the coding and non--‐ coding RNAs, can be very destructive to the cellular environment and consequently impair neural viability. The result of this RNA toxicity can lead to a toxic gain of function or a loss of function, depending on the nature of the mutation. For example, in repeat expansion disorders, such as the newly discovered hexanucleotide repeat expansion in theC9orf72 gene found in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), a toxic gain of function leads to the formation of RNA foci and the sequestration of RNA binding proteins (RBPs). This in return leads to a loss of function of those RBPs, which is hypothesized to play a significant part in the disease progression of ALS and FTD. Other toxicities arising from repeat expansions are the formation of RNA foci, bi--‐directional transcription and production of repeat associated non--‐ATG (RAN) translation products. This book will touch upon most of these disease mechanisms triggered by aberrant RNA metabolism and will therefore provide a broad perspective of the role of RNA processing and its dysfunction in a variety of neurodegenerative disorders, including ALS, FTD, Alzheimer’s disease, Huntington’s disease, spinal muscular atrophy, myotonic dystrophy and ataxias. The proposed authors are leading scientists in the field and are expected to not only discuss their own work, but to be inclusive of historic as well as late breaking discoveries. The compiled chapters will therefore provide a unique collection of novel studies and hypotheses aimed to describe the consequences of altered RNA processing events and its newest molecular players and pathways.
Download or read book Ribosomes Structure Function and Dynamics written by Marina V. Rodnina and published by Springer Science & Business Media. This book was released on 2011-12-10 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ribosome is a macromolecular machine that synthesizes proteins with a high degree of speed and accuracy. Our present understanding of its structure, function and dynamics is the result of six decades of research. This book collects over 40 articles based on the talks presented at the 2010 Ribosome Meeting, held in Orvieto, Italy, covering all facets of the structure and function of the ribosome. New high-resolution crystal structures of functional ribosome complexes and cryo-EM structures of translating ribosomes are presented, while partial reactions of translation are examined in structural and mechanistic detail, featuring translocation as a most dynamic process. Mechanisms of initiation, both in bacterial and eukaryotic systems, translation termination, and novel details of the functions of the respective factors are described. Structure and interactions of the nascent peptide within, and emerging from, the ribosomal peptide exit tunnel are addressed in several articles. Structural and single-molecule studies reveal a picture of the ribosome exhibiting the energy landscape of a processive Brownian machine. The collection provides up-to-date reviews which will serve as a source of essential information for years to come.
Download or read book Eukaryotic Initiation Factors Advances in Research and Application 2012 Edition written by and published by ScholarlyEditions. This book was released on 2012-12-26 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eukaryotic Initiation Factors—Advances in Research and Application: 2012 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about Eukaryotic Initiation Factors in a compact format. The editors have built Eukaryotic Initiation Factors—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Eukaryotic Initiation Factors 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 Eukaryotic Initiation Factors—Advances in Research and Application: 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/.
Download or read book Translation Initiation Extract Systems and Molecular Genetics written by and published by Academic Press. This book was released on 2007-10-15 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: For over fifty years the Methods in Enzymology series has been the critically aclaimed laboratory standard and one of the most respected publications in the field of biochemistry. The highly relevant material makes it an essential publication for researchers in all fields of life and related sciences. This volume, the first of three on the topic of Translation Initiation includes articles written by leaders in the field.
Download or read book From Molecules to Networks written by Ruth Heidelberger and published by Academic Press. This book was released on 2009-01-27 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of the nervous system at virtually any level of analysis requires an understanding of its basic building block, the neuron. From Molecules to Networks provides the solid foundation of the morphologic, biochemical, and biophysical properties of nerve cells. All chapters have been thoroughly revised for this second edition to reflect the significant advances of the past 5 years. The new edition expands on the network aspects of cellular neurobiology by adding a new chapter, Information Processing in Neural Networks, and on the relation of cell biological processes to various neurological diseases. The new concluding chapter illustrates how the great strides in understanding the biochemical and biophysical properties of nerve cells have led to fundamental insights into important aspects of neurodegenerative disease. - Written and edited by leading experts in the field, the second edition completely and comprehensively updates all chapters of this unique textbook - Discusses emerging new understanding of non-classical molecules that affect neuronal signaling - Full colour, professional graphics throughout - Includes two new chapters: Information Processing in Neural Networks - describes the principles of operation of neural networks and the key circuit motifs that are common to many networks in the nervous system. Molecular and Cellular Mechanisms of Neurodegenerative Disease - introduces the progress made in the last 20 years in elucidating the cellular and molecular mechanisms underlying brain disorders, including Amyotrophic Lateral Sclerosis (ALS), Parkinson disease, and Alzheimer's disease
