Développement d'une méthode d'interprétation rapide des spectres RMN pour les protéines PDF Download

Author: Marie-Aude Coutouly
Publisher:
ISBN:
Category :
Languages : fr
Pages : 232

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L'identification des signaux RMN en terme d'acide aminé est connu sous le terme d'attribution. Cette étape est incontournable non seulement lorsque l'on veut déterminer la structure d'une protéine par RMN mais également lorsque l'on a une structure cristallographique et que l'on veut étudier plus avant une protéine.Le programme QUASI pour QUick Access to Spectral Interpretation a été développé afin d'assister l'attribution. Ce nouvel outil permet, grâce à son interface graphique, la présentation de résultats obtenus à partir de références issues d'horizons divers.Les résultats obtenus sur des protéines de tailles différentes telles que l'-actinine EF-34 (75 acide-aminés) et le fragment 24 kDa de la sous-unité B de l'ADN-gyrase (220 acide-aminés) sont précis et fiables.La seconde partie de ce manuscrit est dédiée à l'étude de la dynamique du fragment 24 kDa de la sous-unité B de l'ADN-gyrase. Cette étude est menée à 3 températures 298 K, 303 K et 310 K en présence de 2 ligands ADPNP ou novobiocine. Le fragment s'avère subir des mouvements à différentes échelles de temps. Les boucles, qui se ferment et s'ouvrent sur la poche active, présentent des mouvements particulièrement difficiles à définir.

Author:
Publisher:
ISBN:
Category : Geology
Languages : fr
Pages : 728

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Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251045411
Category : Business & Economics
Languages : en
Pages : 20

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The actual Code of conduct is also available (1996) (ISBN 9251038341).

Author: David J. Wronkiewicz
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1370

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Safe and effective management of nuclear waste provides a broad range of challenges for materials science. Waste processing, waste form and engineered barrier properties, interactions between engineered and geological systems, radiation effects, chemistry and transport of waste species, and long-term predictions of repository performance are just some of the scientific problems facing modern society. This book, the 22nd in a very successful series from MRS, offers an international and inter-disciplinary perspective on the issues, and features developments in both fundamental and applied areas. Topics include: development and characterization of ceramic waste forms; ceramic waste form corrosion; glass waste form processing; glass formulation, properties and structure; glass waste form corrosion; spent nuclear fuel; performance assessment; repository backfill; flow and transport; natural analogues; container corrosion; metal waste form corrosion; radionuclide speciation and solubility; radionuclide sorption; microbial effects; radiation effects; cement waste forms and waste treatment.

Author: Suresh K. Mukherji
Publisher: Wiley-Liss
ISBN: 9780471161783
Category : Medical
Languages : en
Pages : 0

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Book Description
Clinical Applications of MR Spectroscopy Edited by Suresh K. Mukherji, M.D. Magnetic resonance spectroscopy (MRS) is a powerful diagnostic tool for a variety of brain disorders—from epilepsy and tumors to age-related degeneration and strokes. Unlike magnetic resonance imaging (MRI), which gives us a picture of anatomical and physiological conditions, MRS generates a frequency domain spectrum that provides information about biochemical and metabolic processes occurring within tissues. Clinical Applications of MR Spectroscopy presents a short, practical treatment of MRS today. Comprising contributions by leading authorities in the field, the book discusses MRS techniques used for diagnostic purposes and research, terminologies and examples drawn from clinical experience, and ways to correlate MRS results with other modalities to enhance our understanding of disease processes and the outcomes of particular treatments. Topics include: Basic principles of clinical proton magnetic resonance spectroscopy MRS in the evaluation of epilepsy Proton MRS of brain tumors Proton MRS in selected childhood disorders MRS and spectroscopic imaging for cerebrovascular disease MRS of degenerative brain disease in the elderly MRS of the head and neck Potential clinical applications of new techniques in MRS Correlation of functional brain imaging with MRS Clinical Applications of MR Spectroscopy provides 150 photographs and figures to illustrate the interpretation of MRS signals, as well as fully referenced chapters for those wishing to expand their knowledge of the underlying science. It is an essential guide to the state of the art for radiologists and neurologists using this technology to improve patient care.

Author: Ursula Jakob
Publisher: Springer Science & Business Media
ISBN: 9400757875
Category : Science
Languages : en
Pages : 488

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Book Description
Many physiological conditions such as host defense or aging and pathological conditions such as neurodegenerative diseases, and diabetes are associated with the accumulation of high levels of reactive oxygen species and reactive nitrogen species. This generates a condition called oxidative stress. Low levels of reactive oxygen species, however, which are continuously produced during aerobic metabolism, function as important signaling molecules, setting the metabolic pace of cells and regulating processes ranging from gene expression to apoptosis. For this book we would like to recruit the experts in the field of redox chemistry, bioinformatics and proteomics, redox signaling and oxidative stress biology to discuss how organisms achieve the appropriate redox balance, the mechanisms that lead to oxidative stress conditions and the physiological consequences that contribute to aging and disease.

Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251039717
Category : Business & Economics
Languages : en
Pages : 52

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Provides annotations to the Principles of Article 9 of the Code of Conduct for Responsible Fisheries. These annotations are meant to serve as general guidance, and should be taken as suggestions or observations intended to assist those interested in identifying their own criteria and options for actions, as well as partners for collaboration, in support of sustainable aquaculture development.

Author: Habib Zaidi
Publisher: Springer
ISBN: 1493908944
Category : Medical
Languages : en
Pages : 762

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Book Description
This book examines the fundamental concepts of multimodality small-animal molecular imaging technologies and their numerous applications in biomedical research. Driven primarily by the widespread availability of various small-animal models of human diseases replicating accurately biological and biochemical processes in vivo, this is a relatively new yet rapidly expanding field that has excellent potential to become a powerful tool in biomedical research and drug development. In addition to being a powerful clinical tool, a number of imaging modalities including but not limited to CT, MRI, SPECT and PET are also used in small laboratory animal research to visualize and track certain molecular processes associated with diseases such as cancer, heart disease and neurological disorders in living small animal models of disease. In vivo small-animal imaging is playing a pivotal role in the scientific research paradigm enabling to understand human molecular biology and pathophysiology using, for instance, genetically engineered mice with spontaneous diseases that closely mimic human diseases.

Author: Patrick E. McGovern
Publisher: Princeton University Press
ISBN: 0691197202
Category : Cooking
Languages : en
Pages : 456

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Stone age wine -- The Noah hypothesis -- The archaeological and chemical hunt for the earliest wine -- Neolithic wine! -- Wine of the earliest pharaohs -- Wine of Egypt's golden age -- Wine of the world's first cities -- Wine and the great empires of the ancient Near East -- The Holy Land's bounty -- Lands of Dionysos : Greece and western Anatolia -- A beverage for King Midas and at the limits of the civilized world -- Molecular archaeology, wine, and a view to the future.

Author: Michael Locke
Publisher: Elsevier
ISBN: 0323151132
Category : Science
Languages : en
Pages : 421

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Book Description
Major Problems in Developmental Biology contains the proceedings of the 25th Symposium of the Society for Developmental Biology, held in Haverford, Pennsylvania, in June 1966. The papers explore some of the major problems in developmental biology, particularly those relating to cell differentiation, movements, and death; patterning; and intercellular regulation in plants. Organized into 11 chapters, this book begins with an overview of the growth and development of developmental biology as a scientific discipline, with emphasis on the role of the Society for Developmental Biology, and in particular its symposia, in the emergence of the field. The book then discusses the intra- and extracellular factors impinging upon the nucleus and regulating cell differentiation. Some chapters focus on the dynamics of determination in cell systems of insects, morphogenetic movements of animal cells, and patterns at the cell and tissue levels. The reader is also introduced to the correlations between protein structure and function in relation to cell dynamics and differentiation, along with the physiological, biochemical, and molecular biological aspects of intercellular regulation in plants and the role of cell surface in carcinogenesis. The book concludes by suggesting directions for research into the ontogeny of behavior. This book is a valuable source of information for developmental biologists.