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The Role Of Rna Polymerase Ii Phosphorylation In The Early Stages Of Transcription
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Book Synopsis The Role of RNA Polymerase II Phosphorylation in the Early Stages of Transcription by : Jonathan Donald Chesnut
Download or read book The Role of RNA Polymerase II Phosphorylation in the Early Stages of Transcription written by Jonathan Donald Chesnut and published by . This book was released on 1994 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biochemical Studies on the Role of RNA Polymerase II Phosphorylation During Transcription Initiation by : Hua Lü
Download or read book Biochemical Studies on the Role of RNA Polymerase II Phosphorylation During Transcription Initiation written by Hua Lü and published by . This book was released on 1993 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Protein Phosphorylation in Human Health by : Cai Huang
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.
Book Synopsis RNA Polymerase II Controls Transcription Dynamics by :
Download or read book RNA Polymerase II Controls Transcription Dynamics written by and published by . This book was released on 2013 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The C-terminal domain (CTD) of RNA polymerase II (Pol II) consists of conserved heptapeptide repeats that are subject to sequential waves of posttranslational modifications during specific stages of the transcription cycle. These patterned modifications have led to the postulation of the CTD code hypothesis, where stage-specific patterns define a spatiotemporal code that is recognized by the appropriate interacting partners. This thesis summarizes our efforts to define the CTD code, identify the writers and erasers, and explore the function of the code during transcription. We examined the genome-wide distributions of the phospho-serine modifications. We found unique profile clusters for the "early" serine 5 phosphorylation (Ser5-P), the "mid" serine 7 phosphorylation (Ser7-P), and the "late" serine 2 phosphorylation (Ser2-P). We also identified gene class-specific patterns and find widespread co-occurrence of the CTD marks. These phosphorylation marks are placed by an array of phospho-serine kinases. We identified Kin28 (CDK7) as a Ser7-P kinase, and specific inhibition of Kin28 caused a significant decrease in Ser7-P levels at promoters. However, the promoter-distal Ser7-P marks are not remnants of early phosphorylation by Kin28. Instead, we find that Bur1 (CDK9) is positioned to phosphorylate Ser7 within the coding regions. Next, we investigated the phosphatases that erase the CTD code. The importance of these enzymes is emphasized by our observation that an inability to remove Ser7-P marks is lethal. We identified Ssu72 as a Ser7-P phosphatase, and inactivation of Ssu72 triggers a drastic remodeling of Ser7-P distributions across protein-coding and non-coding genes. Furthermore, we report that removal of all phospho-CTD marks during transcription termination is mechanistically coupled. An inability to remove these marks prevents Pol II from terminating efficiently at both gene classes and also impedes proper transcription initiation. Interestingly, Ssu72 seems to be enriched within introns, peaking at the 3' splice site. Interestingly, we do not find polymerase pausing at the 3' splice site or at the terminal exons, as has been previously reported. Instead, we believe Ssu72 may be involved in facilitating the cotranscriptional recruitment of splicing factors by establishing a chromatin state accommodating to splicing.
Book Synopsis Molecular Biology of The Cell by : Bruce Alberts
Download or read book Molecular Biology of The Cell written by Bruce Alberts and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis RNA Exosome by : Torben Heick Jensen
Download or read book RNA Exosome written by Torben Heick Jensen and published by Springer Science & Business Media. This book was released on 2011-06-29 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diversity of RNAs inside living cells is amazing. We have known of the more “classic” RNA species: mRNA, tRNA, rRNA, snRNA and snoRNA for some time now, but in a steady stream new types of molecules are being described as it is becoming clear that most of the genomic information of cells ends up in RNA. To deal with the enormous load of resulting RNA processing and degradation reactions, cells need adequate and efficient molecular machines. The RNA exosome is arising as a major facilitator to this effect. Structural and functional data gathered over the last decade have illustrated the biochemical importance of this multimeric complex and its many co-factors, revealing its enormous regulatory power. By gathering some of the most prominent researchers in the exosome field, it is the aim of this volume to introduce this fascinating protein complex as well as to give a timely and rich account of its many functions. The exosome was discovered more than a decade ago by Phil Mitchell and David Tollervey by its ability to trim the 3’end of yeast, S. cerevisiae, 5. 8S rRNA. In a historic account they laid out the events surrounding this identification and the subsequent birth of the research field. In the chapter by Kurt Januszyk and Christopher Lima the structural organization of eukaryotic exosomes and their evolutionary counterparts in bacteria and archaea are discussed in large part through presentation of structures.
Book Synopsis Caenorhabditis Elegans by : Henry F. Epstein
Download or read book Caenorhabditis Elegans written by Henry F. Epstein and published by Academic Press. This book was released on 1995 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first of its kind, this laboratory handbook emphasizes diverse methods and technologies needed to investigate C. elegans, both as an integrated organism and as a model system for research inquiries in cell, developmental, and molecular biology, as well as in genetics and pharmacology. Four primary sections--Genetic and Culture Methods, Neurobiology, Cell and Molecular Biology, and Genomics and Informatics--reflect the cross-disciplinary nature of C. elegans research. Because C. elegans is a simple and malleable organism with a small genome and few cell types, it provides an elegant demonstr.
Book Synopsis Medical Biochemistry by : Antonio Blanco
Download or read book Medical Biochemistry written by Antonio Blanco and published by Academic Press. This book was released on 2022-03-23 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Medical Biochemistry is supported by more than 45 years of teaching experience, providing coverage of basic biochemical topics, including the structural, physical, and chemical properties of water, carbohydrates, lipids, proteins, and nucleic acids. In addition, the general aspects of thermodynamics, enzymes, bioenergetics, and metabolism are presented in straightforward and easy-to-comprehend language. This book ties these concepts into more complex aspects of biochemistry using a systems approach, dedicating chapters to the integral study of biological phenomena, including cell membrane structure and function, gene expression and regulation, protein synthesis and post-translational modifications, metabolism in specific organs and tissues, autophagy, cell receptors, signal transduction pathways, biochemical bases of endocrinology, immunity, vitamins and minerals, and hemostasis. The field of biochemistry is continuing to grow at a fast pace. This edition has been revised and expanded with all-new sections on the cell plasma membrane, the human microbiome, autophagy, noncoding, small and long RNAs, epigenetics, genetic diseases, virology and vaccines, cell signaling, and different modes of programmed cell death. The book has also been updated with full-color figures, new tables, chapter summaries, and further medical examples to improve learning and better illustrate the concepts described and their clinical significance. Integrates basic biochemistry principles with molecular biology and molecular physiology Illustrates basic biochemical concepts through medical and physiological examples Utilizes a systems approach to understanding biological phenomena Fully updated for recent studies and expanded to include clinically relevant examples and succinct chapter summaries
Book Synopsis Systems Biomedicine by : Edison T. Liu
Download or read book Systems Biomedicine written by Edison T. Liu and published by Academic Press. This book was released on 2009-09-17 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems biology is a critical emerging field that quantifies and annotates the complexity of biological systems in order to construct algorithmic models to predict outcomes from component input. Applications in medicine are revolutionizing our understanding of biological processes and systems. Systems Biomedicine is organized around foundations, computational modeling, network biology, and integrative biology, with the extension of examples from human biology and pharmacology, to focus on the applications of systems approaches to medical problems. An integrative approach to the underlying genomic, proteomic, and computational biology principles provides researchers with guidance in the use of qualitative systems and hypothesis generators. To reflect the highly interdisciplinary nature of the field, careful detail has been extended to ensure explanations of complex mathematical and biological principles are clear with minimum technical jargon. Organized to reflect the important distinguishing characteristics of systems strategies in experimental biology and medicine Provides precise and comprehensive measurement tools for constructing a model of the system and tools for defining complexity as an experimental dependent variable Includes a thorough discussion of the applications of quantitative principles to biomedical problems
Book Synopsis Nuclear Architecture and Dynamics by : Christophe Lavelle
Download or read book Nuclear Architecture and Dynamics written by Christophe Lavelle and published by Academic Press. This book was released on 2017-10-27 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Architecture and Dynamics provides a definitive resource for (bio)physicists and molecular and cellular biologists whose research involves an understanding of the organization of the genome and the mechanisms of its proper reading, maintenance, and replication by the cell. This book brings together the biochemical and physical characteristics of genome organization, providing a relevant framework in which to interpret the control of gene expression and cell differentiation. It includes work from a group of international experts, including biologists, physicists, mathematicians, and bioinformaticians who have come together for a comprehensive presentation of the current developments in the nuclear dynamics and architecture field. The book provides the uninitiated with an entry point to a highly dynamic, but complex issue, and the expert with an opportunity to have a fresh look at the viewpoints advocated by researchers from different disciplines. Highlights the link between the (bio)chemistry and the (bio)physics of chromatin Deciphers the complex interplay between numerous biochemical factors at task in the nucleus and the physical state of chromatin Provides a collective view of the field by a large, diverse group of authors with both physics and biology backgrounds
Book Synopsis Biology for AP ® Courses by : Julianne Zedalis
Download or read book Biology for AP ® Courses written by Julianne Zedalis and published by . This book was released on 2017-10-16 with total page 1923 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology for AP® courses covers the scope and sequence requirements of a typical two-semester Advanced Placement® biology course. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology for AP® Courses was designed to meet and exceed the requirements of the College Board’s AP® Biology framework while allowing significant flexibility for instructors. Each section of the book includes an introduction based on the AP® curriculum and includes rich features that engage students in scientific practice and AP® test preparation; it also highlights careers and research opportunities in biological sciences.
Book Synopsis Structural Basis of RNA Polymerase II C-terminal Domain Kinase and Phosphatase Specificity and Their Impact on Transcriptional Regulation by : Nathaniel Tate Burkholder
Download or read book Structural Basis of RNA Polymerase II C-terminal Domain Kinase and Phosphatase Specificity and Their Impact on Transcriptional Regulation written by Nathaniel Tate Burkholder and published by . This book was released on 2019 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transcription from a most basic perspective is the process of generating strands of RNA from DNA templates. However, in order to control when, where, and how much of specific RNAs are made, cells have evolved vast arrays of transcriptional regulatory mechanisms that allow for extensive differentiation and formation of complex traits. One of the unique and most important mechanisms of transcriptional regulation in eukaryotic cells is the reversible phosphorylation of the RNA polymerase II C-terminal domain (RNAPII CTD). The CTD contains heptad repeats composed of the consensus sequence Tyr1-Ser2-Pro3-Thr4-Ser5-Pro6-Ser7 and all of the non-proline sites are phosphorylated in cells. The human CTD contains 52 repeats where the first 26 proximal heptads are mostly consensus sequence whereas the last 26 distal heptads contain several variations primarily at the Ser7 position. In Chapter 2, I describe how these variations and their modifications alter the phosphorylation of Tyr1 sites by using a combination of biochemical assays and mass spectrometry. Data presented in this chapter reveal how a conserved positively charged pocket in tyrosine kinases likely mediates the interaction residues in the Ser7 position and can potentially affect in vivo Tyr1 phospho-patterning. Futhermore, in Chapter 3 I describe the methodology behind synthesis and testing of cis/trans-locked Ser-Pro CTD peptides for understanding the role of prolyl isomerization on CTD regulation. We used these tools to determine the specificity of several CTD phosphatases, which revealed how the Ser5 phosphatase SSU72 structurally prefers the cis- over the trans-configuration of the phosphorylated Ser5-Pro6 motif. Among the phosphatases discovered to dephosphorylate the CTD, the family of SCP phosphatases seem to be more involved in regulating transcription through dephosphorylation of a different protein called the RE-1 silencing transcription factor (REST). REST is a major silencer of neuronal gene expression in non-neuronal cells which helps prevent development of improper neuronal phenotypes. Abnormally high protein levels of REST have been found in subsets of glioblastoma isolates which likely contributes to their oncogenesis and resistance of chemotherapeutics. SCP1 upregulates REST protein levels through dephosphorylating two degron sites that normally promote rapid turnover of REST, making it a potential drug target for glioblastomas in future studies. In Chapter 4, we show structurally how SCP1 recognizes these REST phosphorylation sites through complex x-ray crystallography. Data presented in this chapter reveal SCP1 specificity for each REST site and how SCP1 activity towards both of them promote REST gene silencing function
Book Synopsis The Post-recruitment Events During RNA Polymerase II Transcription Initiation by : Ming Yan
Download or read book The Post-recruitment Events During RNA Polymerase II Transcription Initiation written by Ming Yan and published by . This book was released on 1999 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transcription and Splicing by : B. D. Hames
Download or read book Transcription and Splicing written by B. D. Hames and published by Oxford University Press, USA. This book was released on 1988 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a co-ordinated review of our present knowledge of eukaryotic RNA synthesis.
Book Synopsis RNA Polymerase III Transcription by : Robert J. White
Download or read book RNA Polymerase III Transcription written by Robert J. White and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph reviews and summarizes the substantial body of work that has been published on the transcription by polymerase III over the past 5 years. Progress in this field has been very rapid since 1993, and this new edition incorporates all the recent developments and offers the reader a highly detailed analysis of the current state of research on this largest and most complex of the eukaryotic RNA polymerases.
Download or read book HIV-1 Latency written by Guido Silvestri and published by Springer. This book was released on 2018-10-11 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume summarizes recent advances in understanding the mechanisms of HIV-1 latency, in characterizing residual viral reservoirs, and in developing targeted interventions to reduce HIV-1 persistence during antiretroviral therapy. Specific chapters address the molecular mechanisms that govern and regulate HIV-1 transcription and latency; assays and technical approaches to quantify viral reservoirs in humans and animal models; the complex interchange between viral reservoirs and the host immune system; computational strategies to model viral reservoir dynamics; and the development of therapeutic approaches that target viral reservoir cells. With contributions from an interdisciplinary group of investigators that cover a broad spectrum of subjects, from molecular virology to proof-of-principle clinical trials, this book is a valuable resource for basic scientists, translational investigators, infectious-disease physicians, individuals living with HIV/AIDS and the general public.
Book Synopsis Role of RNA Polymerase II Pausing in Transcriptional Regulation of Drosophila Genes by : Thomas Paul O'Brien
Download or read book Role of RNA Polymerase II Pausing in Transcriptional Regulation of Drosophila Genes written by Thomas Paul O'Brien and published by . This book was released on 1994 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
