Amino Acids And The Asymmetry Of Life
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Amino Acids And The Asymmetry Of Life
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Author : Uwe Meierhenrich
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-08-15
Amino Acids And The Asymmetry Of Life written by Uwe Meierhenrich and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-08-15 with Science categories.
"How did life originate and why were left-handed molecules selected for its architecture?" This question of high public and interdisciplinary scientific interest is the central theme of this book. It is widely known that in processes triggering the origin of life on Earth, the equal occurrence, the parity between left-handed amino acids and their right-handed mirror images, was violated. The balance was inevitably tipped to the left – as a result of which life's proteins today exclusively implement the left form of amino acids. Written in an engaging style, this book describes how the basic building blocks of life, the amino acids, formed. After a comprehensible introduction to stereochemistry, the author addresses the inherent property of amino acids in living organisms, namely the preference for left-handedness. What was the cause for the violation of parity of amino acids in the emergence of life on Earth? All the fascinating models proposed by physicists, chemists and biologist are vividly presented including the scientific conflicts. The author describes the attempt to verify any of those models with the chirality module of the ROSETTA mission, a probe built and launched with the mission to land on a comet and analyse whether there are chiral organic compounds that could have been brought to the Earth by cometary impacts. A truly interdisciplinary astrobiology book, "Amino Acids and the Asymmetry of Life" will fascinate students, researchers and all readers with backgrounds in natural sciences. With a foreword by Henri B. Kagan.
The Origin Of Chirality In The Molecules Of Life
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Author : Albert Guijarro
language : en
Publisher: Royal Society of Chemistry
Release Date : 2008-11-04
The Origin Of Chirality In The Molecules Of Life written by Albert Guijarro 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 2008-11-04 with Science categories.
This book provides an interdisciplinary review of one of the great unsolved mysteries that has fascinated scientists for over 150 years: the origin of chirality in biomolecules. It was Pasteur who first initiated the search for a deterministic theory to explain the 'handedness' of biomolecules. His theory, that a 'dissimetric' force was involved, was correct in essence but he never saw the fruits of his labour. Current thinking tells us that asymmetry in the universe has its origins in the forces that unfolded after the Big Bang and, more specifically, the weak force. Being 'left handed', the weak force imprinted its signature on the evolving Universe. However, at the molecular level, the weak force does not provide a straightforward explanation of biomolecular homochirality. In fact, it is yet to be proved beyond doubt that a causal link exists at all. Many alternative theories have been put forward, some of them resting on solid ground, but all lacking definitive experimental evidence to back them up. Some postulate that the handedness of molecules in the biosphere arose by chance but this is hard to test. Others rely on discovering life on similar planets and making comparisons with Earth. Alternative theories have emerged from a range of backgrounds including geology, biology, chemistry, physics and astronomy. Current advances in fields as diverse as space exploration, prebiotic chemistry and high-energy physics may help to provide an answer. Important pieces of information will come from observations at the two frontiers of science: outer space and the subatomic world. Observation of distant planets, galaxies, and even actual sampling of celestial objects from beyond the solar system are projects currently underway. At the other end of the spectrum, there are experiments that study the elemental properties of matter, such as symmetry, and interactions with the fundamental forces. All these efforts will render their fruits soon. This volume unifies all the theories of the origin of biomolecular homochirality together in one source. The various chapters focus on chance mechanisms, physical forces such as the 'weakinteraction', fluid dynamics, amplification of chirality, the organic contents of meteorites and comets and, finally, the physical view of an intrinsically asymmetric universe. This complete, interdisciplinary review of an intriguing subject condenses a large and disparate range of contributions from journals in almost every scientific field. The various theories have been organized, interrelated and explained in a unified way. One of the book's strengths is its extensive use of graphic material to aid understanding the many subjects covered. It is fundamental, comprehensive and structured to be accessible for educational purposes.
Possible Scenarios For Homochirality On Earth
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Author : Michiya Fujiki
language : en
Publisher: Buy this from MDPI Books
Release Date : 2019-11-14
Possible Scenarios For Homochirality On Earth written by Michiya Fujiki and has been published by Buy this from MDPI Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-14 with Science categories.
In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world.
Protein The Basis Of All Life
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Author : J. E. R. McDonagh
language : en
Publisher: Butterworth-Heinemann
Release Date : 2016-01-26
Protein The Basis Of All Life written by J. E. R. McDonagh and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-01-26 with Medical categories.
Protein: The Basis of All Life examines the relationship between pulsatory cycles and metabolic cycles happening inside a protein. This book discusses the process of photosynthesis, the production of glycosides, and the importance of fat-soluble and water-soluble vitamins. The introductory chapters deal with the process of anaerobic glycosis; factors involved in the aerobic glycolysis; steps in the citric acid cycle; description of glucose resynthesis; description of the method of transamination; process involved in the production of fats; features of steroids synthesis; and source of nitrogen compounds. The subsequent chapters consider the components of nucleotides, the contents of porphyrin compounds, and the reproductive cycle. The mechanisms of the inflammation-cancer cycle are presented. The concluding chapters are devoted to the chemotherapeutic remedies to be derived from the integrated endocrine glandular system. The book can provide useful information to doctors, endocrinologists, students, and researchers.
Chemistry Of The Amino Acids
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Author : Jesse Philip Greenstein
language : en
Publisher:
Release Date : 1961
Chemistry Of The Amino Acids written by Jesse Philip Greenstein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Amino acids categories.
Salts Of Amino Acids
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Author : Michel Fleck
language : en
Publisher: Springer
Release Date : 2014-07-08
Salts Of Amino Acids written by Michel Fleck and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-08 with Medical categories.
Over the last decades, amino acids have been found to be of importance in many fields of science. Apart from their biological function, this family of organic compounds has been employed in the synthesis of a vast variety of salts, with impact on areas such as materials science, pharmaceutical or physical research. This covers a wide range, from the discovery of important ferroelectrics or non-linear optical materials to nutrients, flavor enhancers or drugs. This book describes amino acids and their salts with cations, anions and inorganic compounds from a chemical, physical and crystallographical point of view. Additional data on structural properties, crystal growth and the relation of structure and physical properties of amino acid salts is discussed.
Chemistry Of Amino Acids And Proteins
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Author : G. Singh
language : en
Publisher: Discovery Publishing House
Release Date : 2007
Chemistry Of Amino Acids And Proteins written by G. Singh and has been published by Discovery Publishing House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Amino acids categories.
Contents: Amino-Acids and Proteins, Carbohydrates, Vitamins and Anthocyanidins, Some Acids and Purine Derivatives.
Basic Amino Acids Advances In Research And Application 2011 Edition
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Author :
language : en
Publisher: ScholarlyEditions
Release Date : 2012-01-09
Basic Amino Acids Advances In Research And Application 2011 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-09 with Medical categories.
Basic Amino Acids: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Basic Amino Acids. The editors have built Basic Amino Acids: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Basic Amino Acids 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 Basic Amino Acids: Advances in Research and Application: 2011 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/.
Amino Acid
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Author : Toshiki Asao
language : en
Publisher: BoD – Books on Demand
Release Date : 2017-06-28
Amino Acid written by Toshiki Asao and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-28 with Science categories.
Amino Acid - New Insights and Roles in Plant and Animal provides useful information on new aspects of amino acid structure, synthesis reactions, dietary application in animals, and metabolism in plants. Section 1 includes chapters that describe the therapeutic uses, antiallergic effects, new aspects in the D-amino acid structure, historical background of desmosines, and stereoselective synthesis of ?-aminophosphonic acids. Section 2 presents the role of amino acids in plants, which includes new insights and aspects of D-amino acids, metabolism and transport in soybean, changes during energy storage compound accumulation of microalgae, and determination of amino acids from natural compounds. Section 3 describes the chapters on methodologies and requirement of dietary amino acids for Japanese quails, laying hens, and finishing pigs. The final chapter identifies potential importance of glutathione S-transferase activity for generating resistance to triclabendazole in Fasciola hepatica.
Amino Acids Peptides And Proteins
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Author : J. S. Davies
language : en
Publisher: Royal Society of Chemistry
Release Date : 2001
Amino Acids Peptides And Proteins written by J. S. Davies 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 2001 with Reference categories.
In an ever-increasing domain of activity Amino Acids Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 32 provides a review of literature published during 1999. Comprising a comprehensive review of significant developments at this biology/chemistry interface each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters ranging from current trends in their synthesis and conformational and structural analysis to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters whilst periodic chapters on metal complexes of amino acids peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries and at the biology/chemistry interface in academia will find this an indispensable reference source.