Predicting And Testing Determinants Of Histidine Kinase Functions By Leveraging Protein Sequence Information
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Predicting And Testing Determinants Of Histidine Kinase Functions By Leveraging Protein Sequence Information
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Author : Orr Ashenberg
language : en
Publisher:
Release Date : 2013
Predicting And Testing Determinants Of Histidine Kinase Functions By Leveraging Protein Sequence Information written by Orr Ashenberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
All cells sense and respond to their environments using signal transduction pathways. These pathways control a sweeping variety of cellular processes across the domains of life, but the pathways are often built from a small, shared set of protein domains. At the core of tens of thousands of signal transduction networks in bacteria is a pair of proteins, a histidine kinase and a response regulator. Upon receiving an input signal, a histidine kinase autophosphorylates and then catalyzes transfer of its phosphoryl group to a cognate response regulator, which often activates a transcriptional response. Bacteria typically encode dozens of kinases and regulators, and the kinases function as dimers in all known examples. This dimeric state raises two functional questions. Do histidine kinases specifically form dimers? Once a kinase has dimerized, does a chain in the dimer phosphorylate itself (cis) or its partner chain (trans)? Specific kinase dimerization is likely important to avoid detrimental crosstalk between separate signaling pathways, and how autophosphorylation occurs is central to kinase activity. In my thesis, I have taken biochemical and evolutionary approaches to identify molecular determinants for both dimerization specificity and autophosphorylation. To study dimerization specificity, I developed an in vitro binding assay to measure kinase dimerization, and I then showed that a paralogous pair of kinases from E. coli specifically formed homodimers over heterodimers. Residues important for dimerization specificity were predicted by measuring amino acid coevolution within kinases, which leverages the enormous amount of sequence information available for the kinase family. Experimental verification of these predictions showed that a set of residues at the base of the kinase dimerization domain was sufficient to establish homospecificity. This same region of the kinase, in particular the loops at the base of the kinase dimer, was also important for determining autophosphorylation mechanism. Recent work showed that kinases could autophosphorylate either in cis or in trans, and I found that a trans kinase could be made to autophosphorylate in cis by replacing its loop with the loop from a cis kinase. I also found that two sets of orthologs, despite having significantly diverged loop sequences, had conserved their autophosphorylation mechanisms. This raised the possibility that kinase loops may be under selection to maintain the same autophosphorylation mechanism.
Histidine Kinases In Signal Transduction
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Author : Masayori Inouye
language : en
Publisher: Elsevier
Release Date : 2002-11-13
Histidine Kinases In Signal Transduction written by Masayori Inouye and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-11-13 with Science categories.
Living cells are constantly sensing environmental changes, and their abilities to sense these changes and adapt to them are essential for their survival. In bacteria, histidine kinases are the major sensors for these environmental stresses, enabling cells to adapt to new growth conditions. Written by leading experts in the field, this book provides an up-to-date and comprehensive review on the structure and function of histidine kinases. It also provides extensive information on the physiological roles of histidine kinases in bacteria and eukaryotes. An an essential reference for cell biologists, microbiologists, molecular biologists, and biochemists interested in signal transduction. Experimental biologists and pharmacologists studying signal transduction systems in living organisms will also find it a valuable research tool. The first comprehensive book on the roles of histidine kinases in cells 23 in-depth chapters written by leading experts in the field Describes the most recent advances in the field of signal transduction
Protein Homeostasis Diseases
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Author : Angel L. Pey
language : en
Publisher: Academic Press
Release Date : 2020-02-13
Protein Homeostasis Diseases written by Angel L. Pey and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-13 with Science categories.
Protein Homeostasis Diseases: Mechanisms and Novel Therapies offers an interdisciplinary examination of the fundamental aspects, biochemistry and molecular biology of protein homeostasis disease, including the use of natural and pharmacological small molecules to treat common and rare protein homeostasis disorders. Contributions from international experts discuss the biochemical and genetic components of protein homeostasis disorders, the mechanisms by which genetic variants may cause loss-of-function and gain-of-toxic-function, and how natural ligands can restore protein function and homeostasis in genetic diseases. Applied chapters provide guidance on employing high throughput sequencing and screening methodologies to develop pharmacological chaperones and repurpose approved drugs to treat protein homeostasis disorders. Provides an interdisciplinary examination of protein homeostasis disorders, with an emphasis on treatment strategies employing small natural and pharmacological ligands Offers applied approaches in employing high throughput sequencing and screening to develop pharmacological chaperones to treat protein homeostasis disease Gathers expertise from a range of international chapter authors who work across various biological methods and disease specific disciplines of relevance
The Pangenome
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Author : Hervé Tettelin
language : en
Publisher: Springer Nature
Release Date : 2020-04-30
The Pangenome written by Hervé Tettelin and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-30 with Science categories.
This open access book offers the first comprehensive account of the pan-genome concept and its manifold implications. The realization that the genetic repertoire of a biological species always encompasses more than the genome of each individual is one of the earliest examples of big data in biology that opened biology to the unbounded. The study of genetic variation observed within a species challenges existing views and has profound consequences for our understanding of the fundamental mechanisms underpinning bacterial biology and evolution. The underlying rationale extends well beyond the initial prokaryotic focus to all kingdoms of life and evolves into similar concepts for metagenomes, phenomes and epigenomes. The book’s respective chapters address a range of topics, from the serendipitous emergence of the pan-genome concept and its impacts on the fields of microbiology, vaccinology and antimicrobial resistance, to the study of microbial communities, bioinformatic applications and mathematical models that tie in with complex systems and economic theory. Given its scope, the book will appeal to a broad readership interested in population dynamics, evolutionary biology and genomics.
Data Mining In Proteomics
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Author : Michael Hamacher
language : en
Publisher: Humana Press
Release Date : 2016-08-23
Data Mining In Proteomics written by Michael Hamacher and has been published by Humana Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-23 with Science categories.
Through the rapid development of proteomics methods and technologies, an enormous amount of data was created, leading to a wide-spread rethinking of strategy design and data interpretation. In Data Mining in Proteomics: From Standards to Applications, experts in the field present these new insights within the proteomics community, taking the historical evolution as well as the most important international standardization projects into account. Along with basic and sophisticated overviews of proteomics technologies, standard data formats, and databases, the volume features chapters on data interpretation strategies including statistics, spectra interpretation, and analysis environments as well as specialized tasks such as data annotation, peak picking, phosphoproteomics, spectrum libraries, LC/MS imaging, and splice isoforms. As a part of the highly successful Methods in Molecular BiologyTM series, this work provides the kind of detailed description and implementation advice that is crucial for getting optimal results. Authoritative and cutting-edge, Data Mining in Proteomics: From Standards to Applications is a well-balanced compendium for beginners and experts, offering a broad scope of data mining topics but always focusing on the current state-of-the-art and beyond.
Atomic Evidence
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Author : David S. Goodsell
language : en
Publisher: Springer
Release Date : 2016-08-04
Atomic Evidence written by David S. Goodsell and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-04 with Science categories.
This book will take an evidence-based approach to current knowledge about biomolecules and their place in our lives, inviting readers to explore how we know what we know, and how current gaps in knowledge may influence the way we approach the information. Biomolecular science is increasingly important in our everyday life, influencing the choices we make about our diet, our health, and our wellness. Often, however, information about biomolecular science is presented as a list of immutable facts, discouraging critical thought. The book will introduce the basic tools of structural biology, supply real-life examples, and encourage critical thought about aspects of biology that are still not fully understood.
Kinase Drug Discovery
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Author : Richard A. Ward
language : en
Publisher: Royal Society of Chemistry
Release Date : 2012
Kinase Drug Discovery written by Richard A. Ward and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Medical categories.
Kinase drug discovery remains an area of significant interest across academia and in the pharmaceutical industry. There are now around 13 FDA approved small molecule drugs which target kinases and many more compounds in various stages of clinical development. Although there have been a number of reviews/publications on kinase research, this book fills a gap in the literature by considering the current and future opportunities and challenges in targeting this important family of enzymes. The book is forward-looking and identifies a number of hot topics and key areas for kinase drug discovery over the coming years. It includes contributions from highly respected authors with a combined experience in the industry of well over 200 years, which has resulted in a book of great interest to the kinase field and across drug discovery more generally. Readers will gain a real insight into the huge challenges and opportunities which this target class has presented drug discovery scientists. The many chapters cover a wide breadth of topics, are well written and include high quality colour and black and white images. Topics covered include an outline of how medicinal chemistry has been able to specifically exploit this unique target class, along with reflections on the mechanisms of kinases inhibitors. Also covered is resistance to kinase inhibitors caused by amino acid mutations, case studies of kinase programs and reviews areas beyond protein kinases and beyond the human kinome. Also described are modern approaches to finding kinase leads and the book finishes with a reflection of how kinase drug discovery may progress over the coming years.
Bioinformatics Computing
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Author : Bryan P. Bergeron
language : en
Publisher: Prentice Hall Professional
Release Date : 2003
Bioinformatics Computing written by Bryan P. Bergeron and has been published by Prentice Hall Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Computers categories.
Comprehensive and concise, this handbook has chapters on computing visualization, large database designs, advanced pattern matching and other key bioinformatics techniques. It is a practical guide to computing in the growing field of Bioinformatics--the study of how information is represented and transmitted in biological systems, starting at the molecular level.
Innovations And Implementations Of Computer Aided Drug Discovery Strategies In Rational Drug Design
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Author : Sanjeev Kumar Singh
language : en
Publisher: Springer Nature
Release Date : 2021-02-02
Innovations And Implementations Of Computer Aided Drug Discovery Strategies In Rational Drug Design written by Sanjeev Kumar Singh and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-02 with Science categories.
This book presents various computer-aided drug discovery methods for the design and development of ligand and structure-based drug molecules. A wide variety of computational approaches are now being used in various stages of drug discovery and development, as well as in clinical studies. Yet, despite the rapid advances in computer software and hardware, combined with the exponential growth in the available biological information, there are many challenges that still need to be addressed, as this book shows. In turn, it shares valuable insights into receptor-ligand interactions in connection with various biological functions and human diseases. The book discusses a wide range of phylogenetic methods and highlights the applications of Molecular Dynamics Simulation in the drug discovery process. It also explores the application of quantum mechanics in order to provide better accuracy when calculating protein-ligand binding interactions and predicting binding affinities. In closing, the book provides illustrative descriptions of major challenges associated with computer-aided drug discovery for the development of therapeutic drugs. Given its scope, it offers a valuable asset for life sciences researchers, medicinal chemists and bioinformaticians looking for the latest information on computer-aided methodologies for drug development, together with their applications in drug discovery.
Molecular Epidemiology
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Author : Paul A. Schulte
language : en
Publisher: Academic Press
Release Date : 2012-12-02
Molecular Epidemiology written by Paul A. Schulte and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Medical categories.
This book will serve as a primer for both laboratory and field scientists who are shaping the emerging field of molecular epidemiology. Molecular epidemiology utilizes the same paradigm as traditional epidemiology but uses biological markers to identify exposure, disease or susceptibility. Schulte and Perera present the epidemiologic methods pertinent to biological markers. The book is also designed to enumerate the considerations necessary for valid field research and provide a resource on the salient and subtle features of biological indicators.