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Molecular Modelling Of Vitamin B12 And Its Analogues
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Book Synopsis Molecular Modelling of Vitamin B12 and Its Analogues by : Penny Govender
Download or read book Molecular Modelling of Vitamin B12 and Its Analogues written by Penny Govender and published by CRC Press. This book was released on 2021-09-23 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years, the chemistry of vitamin B12 and its derivatives has been investigated for their inherent eco-friendly and nontoxic nature. This vitamin, also known as cobalamin, is an organic complex that contains a cobalt ion in its structure. Its derivatives are vital bio-inorganic cofactors and possess complex and rich photolytic properties, facilitated by their excited states. This book compiles and details cutting-edge research in the application of vitamin B12 as an environmentally benign catalyst for several organic reactions. It discusses the recent advances and current understanding of the photolytic properties of vitamin B12 derivatives from the perspective of the density functional theory (DFT). The book is of interest for anyone involved in nanotechnology, macromolecular science, cancer, and drug-delivery research.
Book Synopsis Molecular Modelling of Vitamin B12 and Its Analogues by : Penny Govender
Download or read book Molecular Modelling of Vitamin B12 and Its Analogues written by Penny Govender and published by . This book was released on 2021-09-29 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years, the chemistry of vitamin B12 and its derivatives has been investigated for their inherent eco-friendly and nontoxic nature. This vitamin, also known as cobalamin, is an organic complex that contains a cobalt ion in its structure. Its derivatives are vital bio-inorganic cofactors and possess complex and rich photolytic properties, facilitated by their excited states. Several studies in the field of organic chemistry have effectively applied vitamin B12 as a catalyst in various organic reactions such as 1,4-additions to activated double bonds, alkyl and aryl halide dimerization, dehalogenation, and hydrogenation of double bonds. The story of vitamin B12 analogues has opened doors for exploring other large ring-type structures that can be used for designing drug delivery systems and synthesising smart biological materials. This book compiles and details cutting-edge research in the application of vitamin B12 as an environmentally benign catalyst for several organic reactions. It discusses the recent advances and current understanding of the photolytic properties of vitamin B12 derivatives from the perspective of the density functional theory. The book is of interest for anyone involved in nanotechnology, macromolecular science, cancer, and drug-delivery research.
Download or read book Vitamin B12 written by Gerald Litwack and published by Elsevier. This book was released on 2022-03-23 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acknowledgments -- References -- Chapter Three: Cobamide remodeling -- 1. Introduction -- 2. Cobamide diversity and distribution -- 2.1. Cobamide analogs -- 2.2. Distribution of cobamide analogs -- 2.3. Biosynthesis of cobamide analogs -- 3. Cobamide remodeling proteins -- 3.1. Amidohydrolase CbiZ -- 3.2. Phosphodiesterase CbiR -- 3.3. CobS-mediated direct remodeling -- 4. Conclusions and outlook -- References -- Chapter Four: Cubilin, the intrinsic factor-vitamin B12 receptor -- 1. Introduction -- 2. Expression sites of cubilin, Lrp2 and Amn.
Book Synopsis The Crystal and Molecular Structure of a Vitamin B12 Model Compound by : Walter Wade Adams
Download or read book The Crystal and Molecular Structure of a Vitamin B12 Model Compound written by Walter Wade Adams and published by . This book was released on 1971 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vitamin B 12 and B 12-Proteins by : Bernhard Kräutler
Download or read book Vitamin B 12 and B 12-Proteins written by Bernhard Kräutler and published by Wiley-VCH. This book was released on 2008-07-11 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely and topical book reviews the important developments in the 'B12-field' with regard to biological, chemical, pharmaceutical and medicinal aspects. In over 30 chapters the approx. 100 internationally renowned authors give deeper insight into the prospering research activites around B12. This book is a must for everybody who works with or on vitamins and porphyrine (-like) ring systems. Topics of particular interest include: Biosynthesis of Vitamin B12; B12-catalyzed enzymatic reactions and their mechanisms; structural B12-chemistry; reactivity of B12 and B12-models; structure and function of B12-proteins; metabolic transport and storage of B12; pathological effects of B12-deficiency.
Download or read book Research Awards Index written by and published by . This book was released on 1987 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Enzyme and Coenzyme Chemistry by : T. D. H. Bugg
Download or read book Introduction to Enzyme and Coenzyme Chemistry written by T. D. H. Bugg and published by John Wiley & Sons. This book was released on 2012-05-29 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzymes are giant macromolecules which catalyse biochemical reactions. They are remarkable in many ways. Their three-dimensional structures are highly complex, yet they are formed by spontaneous folding of a linear polypeptide chain. Their catalytic properties are far more impressive than synthetic catalysts which operate under more extreme conditions. Each enzyme catalyses a single chemical reaction on a particular chemical substrate with very high enantioselectivity and enantiospecificity at rates which approach “catalytic perfection”. Living cells are capable of carrying out a huge repertoire of enzyme-catalysed chemical reactions, some of which have little or no precedent in organic chemistry. The popular textbook Introduction to Enzyme and Coenzyme Chemistry has been thoroughly updated to include information on the most recent advances in our understanding of enzyme action, with additional recent examples from the literature used to illustrate key points. A major new feature is the inclusion of two-colour figures, and the addition of over 40 new figures of the active sites of enzymes discussed in the text, in order to illustrate the interplay between enzyme structure and function. This new edition provides a concise but comprehensive account from the perspective of organic chemistry, what enzymes are, how they work, and how they catalyse many of the major classes of enzymatic reactions, and will continue to prove invaluable to both undergraduate and postgraduate students of organic, bio-organic and medicinal chemistry, chemical biology, biochemistry and biotechnology.
Book Synopsis Industrial Biotechnology of Vitamins, Biopigments, and Antioxidants by : Erick J. Vandamme
Download or read book Industrial Biotechnology of Vitamins, Biopigments, and Antioxidants written by Erick J. Vandamme and published by John Wiley & Sons. This book was released on 2016-04-25 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamins are a group of physiologically very important, chemically quite complex organic compounds, that are essential for humans and animals. Some vitamins and other growth factors behave as antioxidants, while some can be considered as biopigments. As their chemical synthesis is laborious, their biotechnology-based synthesis and production via microbial fermentation has gained substantial interest within the last decades. Recent progress in microbial genetics and in metabolic engineering and implementation of innovative bioprocess technology has led to a biotechnology-based industrial production of many vitamins and related compounds. Divided into three sections, this volume covers: 1. water-soluble vitamins 2. fat-soluble vitamin compounds and 3. other growth factors, biopigments, and antioxidants. They are all reviewed systematically: from natural occurrence and assays, via biosynthesis, strain development, to industrially-employed biotechnological syntheses and applications.
Book Synopsis Research Grants Index by : National Institutes of Health (U.S.). Division of Research Grants
Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1966 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supramolecular Chemistry by : Peter J. Cragg
Download or read book Supramolecular Chemistry written by Peter J. Cragg and published by Springer Science & Business Media. This book was released on 2010-08-26 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to return to the biomimicry and medicinal potential that inspired many of the early supramolecular chemists and to set it in the context of current advances in the field. Following an overview of supramolecular chemistry, the first section considers the efforts made to synthesize artificial systems that mimic biological entities. The second section addresses the application of supramolecular principles to molecular diagnostics with a particular emphasis on the ‘receptor-relayreporter’ motif. Many of the examples chosen have clinical importance. The third section takes the clinical diagnostic theme further and demonstrates the therapeutic applications of supramolecular chemistry through photodynamic therapy, drug delivery, and the potential for synthetic peptides to form antibiotic tubes. The short epilogue considers the potential for supramolecular solutions to be found for further challenges in biomimetic and therapeutic chemistry.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1999 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subject Index of Current Extramural Research Administered by the National Cancer Institute by : National Cancer Institute (U.S.)
Download or read book Subject Index of Current Extramural Research Administered by the National Cancer Institute written by National Cancer Institute (U.S.) and published by . This book was released on 1974 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides information concerning research grants and contracts supported by the National Cancer Institute.
Book Synopsis Encyclopedia of Supramolecular Chemistry - Two-Volume Set (Print) by : Jerry L. Atwood
Download or read book Encyclopedia of Supramolecular Chemistry - Two-Volume Set (Print) written by Jerry L. Atwood and published by CRC Press. This book was released on 2013-10-09 with total page 1745 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume Encyclopedia of Supramolecular Chemistry offers authoritative, centralized information on a rapidly expanding interdisciplinary field. User-friendly and high-quality articles parse the latest supramolecular advancements and methods in the areas of chemistry, biochemistry, biology, environmental and materials science and engineering, physics, computer science, and applied mathematics. Designed for specialists and students alike, the set covers the fundamentals of supramolecular chemistry and sets the standard for relevant future research.
Book Synopsis Biomedical Index to PHS-supported Research by :
Download or read book Biomedical Index to PHS-supported Research written by and published by . This book was released on 1990 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Supramolecular Chemistry by : J. L. Atwood
Download or read book Encyclopedia of Supramolecular Chemistry written by J. L. Atwood and published by CRC Press. This book was released on 2004 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the fundamentals of supramolecular chemistry; supramolecular advancements and methods in the areas of chemistry, biochemistry, biology, environmental and materials science and engineering, physics, computer science, and applied mathematics.
Book Synopsis Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline by : Institute of Medicine
Download or read book Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline written by Institute of Medicine and published by National Academies Press. This book was released on 2000-07-15 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1941, Recommended Dietary Allowances (RDAs) has been recognized as the most authoritative source of information on nutrient levels for healthy people. Since publication of the 10th edition in 1989, there has been rising awareness of the impact of nutrition on chronic disease. In light of new research findings and a growing public focus on nutrition and health, the expert panel responsible for formulation RDAs reviewed and expanded its approachâ€"the result: Dietary Reference Intakes. This new series of references greatly extends the scope and application of previous nutrient guidelines. For each nutrient the book presents what is known about how the nutrient functions in the human body, what the best method is to determine its requirements, which factors (caffeine or exercise, for example) may affect how it works, and how the nutrient may be related to chronic disease. This volume of the series presents information about thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin, and choline. Based on analysis of nutrient metabolism in humans and data on intakes in the U.S. population, the committee recommends intakes for each age groupâ€"from the first days of life through childhood, sexual maturity, midlife, and the later years. Recommendations for pregnancy and lactation also are made, and the book identifies when intake of a nutrient may be too much. Representing a new paradigm for the nutrition community, Dietary Reference Intakes encompasses: Estimated Average Requirements (EARs). These are used to set Recommended Dietary Allowances. Recommended Dietary Allowances (RDAs). Intakes that meet the RDA are likely to meet the nutrient requirement of nearly all individuals in a life-stage and gender group. Adequate Intakes (AIs). These are used instead of RDAs when an EAR cannot be calculated. Both the RDA and the AI may be used as goals for individual intake. Tolerable Upper Intake Levels (ULs). Intakes below the UL are unlikely to pose risks of adverse health effects in healthy people. This new framework encompasses both essential nutrients and other food components thought to pay a role in health, such as dietary fiber. It incorporates functional endpoints and examines the relationship between dose and response in determining adequacy and the hazards of excess intake for each nutrient.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1991 with total page 1384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
