Download or read book Amino Acids and the Asymmetry of Life written by Uwe Meierhenrich and published by Springer Science & Business Media. This book was released on 2008-08-15 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Download or read book Asymmetric Synthesis and Application of Alpha Amino Acids written by Vadim A Soloshonok and published by American Chemical Society. This book was released on 2009-07-09 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the most recent and comprehensive collection of reviews on methodological developments in the field of alpha-amino acids.

Download or read book The Amino Acid Legend written by Mike Mars and published by MCAT Adventure. This book was released on 2020-04-28 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Need to learn the Amino Acids in a day? This is the best method. The Amino Acid Legend is a master mnemonic: teaching you biology's alphabet the same way you learned the English alphabet - through storytelling. With nearly 60 pages of original, fantastical illustrations - The Amino Acid Legend is sure to embed an understanding no textbook can grant. Built initially for the Post 2015 MCAT, this book converts all 20 amino acids into 20 personable creatures. In a seamless, multifaceted, metaphorical mnemonic system; this book was crafted with a love for understanding life: and it attempts to bestow any reader - kindergartner to physician - a foundation for wielding the language of life.

Download or read book Amino Acids written by G. Lubec and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is little wonder in the fact that the investigation of amino acids is of fundamental interest to scientists from so many diversified fields. If amino acids were only basic constituents of enzymes as well as structural and other proteins, this property alone would elevate them to real scientific importance. Added to this role, however, is their ability to serve as building blocks for the production of many classes of secondary metabolites. They can support the biosynthesis of a myriad of natural products including nonprotein amino acids, cyanogenic glycosides, phar macologically active alkaloids, certain phenols, purines and pyrimidines, nucleic acids, condensed tannins, lignins and other metabolites. The approximately twenty or so amino (and imino) acids that comprise proteins are well known; less familiar are what is now approaching 600 nonprotein amino acids that have been isolated and characterized from plant, fungal or animal sources. Investigations of the protein amino acids have proven of outstanding value in enhancing our understanding of a variety of physiological and neurological topics that affect human health and well being. Amino acids are used to probe inhibitory and excitatory transmission receptors in the brain. They contribute to our understanding of epilepsy, development of anti-epileptic drugs, production of novel y-arninobutyric acid uptake inhibitors, and acute and chronic neurodegenera tive disorders.

Download or read book The Origin of Chirality in the Molecules of Life written by Albert Guijarro and published by Royal Society of Chemistry. This book was released on 2008-11-04 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Possible Scenarios for Homochirality on Earth written by Michiya Fujiki and published by Buy this from MDPI Books. This book was released on 2019-11-14 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Amino Acid written by Toshiki Asao and published by BoD – Books on Demand. This book was released on 2017-06-28 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book A Study of the Asymmetric Synthesis of Amino Acids written by Sandra A. Staley and published by . This book was released on 1993 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Amino Acids Peptides and Proteins written by G. C. Barrett and published by Royal Society of Chemistry. This book was released on 2002 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 33 provides a review of literature published during 2000. 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.

Download or read book Molecules and Life written by Mikhail V. Vol kenshtein and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: acids. The achievements of molecular biology testify to the success of material science in a realm which, until recently, appeared totally enig matic and mysterious. Further scientific developments should bring to mankind vast developments both in theoretical knowledge and in practical applications, namely, in agriculture, medicine, and technology. The purpose of this book is to explain molecular biophysics to all who might wish to learn about it, to biologists, to physicists, to chemists. This book contains descriptive sections, as well as sections devoted to rigorous mathematical treatment of a number of problems, some of which have been studied by the author and his collaborators. These sections may be omitted during a first reading. Each chapter has a selected bibliography. This book is far from an exhaustive treatise on molecular biophysics. It deals principally with questions related to the structures and functions of proteins and nucleic acids. M. V. Vol'kenshtein Leningrad, September, 1964 CONTENTS Chapter 1 Physics and Biology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Physics and Life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Molecular Physics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Molecular Biophysics ................................... 9 Thermodynamics and Biology. . . . . . . . . . . . . . . . . . . . . 12 . . . . . . . Information Theory. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 . . . . . . . . . . Chapter 2 Cells, Viruses, and Heredity. . . . . . . . . . . . . . . . . . . . . . . . 27 . . . . . . . . The Living Cell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 . . . . . . . . . . . Cell Division. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 . . . . . . . . . . . . Viruses and Bacteriophages ........... . . . . . . . . . . . . . . . 44 . . . . Basic Laws of Genetics . . . . . . . . . . . . . . . . . . . . . . . . . 50 . . . . . . . . . Mutations and Mutability ........ , ................. " . . . . 60 Genetics of Bacteria and Phages " . . . . . . . . . . . . . . . . . . 66 . . . . . . Chapter 3 Biological Molecules. . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 . . . . . . . . . . Amino Acids and Proteins . . . . . . . . . . . . . . . . . . . . . . . 79 . . . . . . . . Asymmetry of Biological Molecules ....................... 87 Primary Structure of Proteins ............................ 94 Nucleic Acids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 . . . . . . . . . . . . Some Biochemical Processes in the Cell. . . . . . . . . . . . . . . . 109 . . . . Chapter 4 Physics of Macromolecules. . . . . . . . . . . . . . . . . . . . . . . . 123 . . . . . . . . .

Download or read book Mirror Image Asymmetry written by James P. Riehl and published by John Wiley & Sons. This book was released on 2010-03-22 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the importance and consequences of asymmetry from molecules to the macroscopic world As scientists have become more capable of probing the structure of three-dimensional objects at the molecular level, the need to understand the concept and the consequences of mirror-image asymmetry—chirality—has increased enormously. Written at an introductory level, Mirror-Image Asymmetry provides an overview of the importance and effects of asymmetry from the atomic and molecular world of physics and chemistry to the organisms and structures that we see and use in our everyday life. The reader will develop a broad appreciation of three-dimensional asymmetry from the microscopic molecular world to the macroscopic world of handedness, automobile driving, windmills, sports, and similar phenomena. The book features: An introduction to basic definitions and the nomenclature of asymmetric and dissymmetric molecules Up-to-date examples of the importance and consequences of asymmetry in modern drug applications, current theories of the origin of asymmetry in nature, and examples of molecular asymmetry in smell, taste, and insect communication Many illustrations, chemical structures, and photographs that enable the reader to connect the actual asymmetrical structures to the different phenomena that depend on structural asymmetry In the 150 years since Louis Pasteur discovered asymmetry in molecular structures, scientists have made great progress in understanding how interactions between chiral molecules influence biochemical processes. This knowledge is leading to very sophisticated asymmetric synthetic techniques that have greatly benefitted many research groups especially those in the pharmaceutical industry. This guide to the role of molecular and macroscopic chirality will inspire students and scientists in chemistry, biology, physics, and drug discovery.

Download or read book Chemistry of the Amino Acids written by Jesse Philip Greenstein and published by . This book was released on 1961 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Non Natural Amino Acids written by and published by Academic Press. This book was released on 2009-07-24 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: By combining the tools of organic chemistry with those of physical biochemistry and cell biology, Non-Natural Amino Acids aims to provide fundamental insights into how proteins work within the context of complex biological systems of biomedical interest. The critically acclaimed laboratory standard for 40 years, Methods in Enzymology is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. With more than 400 volumes published, each Methods in Enzymology volume presents material that is relevant in today's labs -- truly an essential publication for researchers in all fields of life sciences. - Demonstrates how the tools and principles of chemistry combined with the molecules and processes of living cells can be combined to create molecules with new properties and functions found neither in nature nor in the test tube - Presents new insights into the molecular mechanisms of complex biological and chemical systems that can be gained by studying the structure and function of non-natural molecules - Provides a "one-stop shop" for tried and tested essential techniques, eliminating the need to wade through untested or unreliable methods

Download or read book Biochirality written by Pedro Cintas and published by Springer. This book was released on 2014-07-08 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Early History of the Recognition of Molecular Biochirality, by Joseph Gal, Pedro Cintas Synthesis and Chirality of Amino Acids Under Interstellar Conditions, by Chaitanya Giri, Fred Goesmann, Cornelia Meinert, Amanda C. Evans, Uwe J. Meierhenrich Chemical and Physical Models for the Emergence of Biological Homochirality, by son E. Hein, Dragos Gherase, Donna G. Blackmond Biomolecules at Interfaces: Chiral, Naturally, by Arántzazu González-Campo and David B. Amabilino Stochastic Mirror Symmetry Breaking: Theoretical Models and Simulation of Experiments, by Celia Blanco, David Hochberg Self-Assembly of Dendritic Dipeptides as a Model of Chiral Selection in Primitive Biological Systems, by Brad M. Rosen, Cécile Roche, Virgil Percec Chirality and Protein Biosynthesis, by Sindrila Dutta Banik, Nilashis Nandi

Download or read book An Approach to the Asymmetric Synthesis of Alpha amino Acids written by Ronald James McCaully and published by . This book was released on 1964 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prebiotic Chemistry written by Peter Walde and published by Springer Science & Business Media. This book was released on 2005-10-13 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: