Download or read book Structure and Function of Escherichia Coli Valine Transfer RNA in Aminoacylation and Ternary Complex Formation written by Jack Chia-Hsiang Liu and published by . This book was released on 1997 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship of E. coli tRNA[superscript Val] structure to its function in the aminoacylation reaction and the later steps of polypeptide synthesis was investigated. Steady-state kinetic studies of the aminoacylation of in vitro transcribed tRNA[superscript Val] variants have shown that nucleotides, A35, C36, A73, and G20, are important for the specific recognition of E. coli tRNA[superscript Val] by valyl-tRNA synthetase (ValRS). Identity swap experiments, testing the efficiency of this "recognition nucleotide set" in converting yeast tRNA[superscript Phe] and E. coli tRNA[superscript Phe] into valine into valine acceptors, confirm the importance of the recognition nucleotide set. In addition, a minor recognition nucleotide, G45, was also identified. Furthermore, our results indicate that VALRS requires an undistorted A-form helix in the acceptor stem for efficient aminoacylation of a TRNA substrate. In a study of the universally conserved 3'-CCA sequence of tRNA[superscript Val], our laboratory has shown that the 3'-CCA is not essential for all functions.
Download or read book Mechanisms of Protein Synthesis written by Engin Bermek and published by Springer. This book was released on 1985 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms of Protein Synthesis written by E. Bermek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers presented at the international symposium on "Molecular Mechanisms in Protein Synthesis" held on September 26-27, 1983 at the Beyaz Ko§k in Emirgan, Bosphorus, Istanbul. The symposium aimed to create a medium for information exchange and discussions regarding the current developments in the area of protein syn thesis. To ensure an informal yet scientifically stimulating and productive atmosphere providing opportunity for relaxed and speculative discussions, the number of presentations was limited to twenty and that of attendants to about sixty. The emphasis in the symposium was laid on structure-function relations in the prokaryotic protein synthesizing systems and on the control mechanisms of eukaryotic protein synthesis, in particular, during chain initia tion. Other issues like evolutionary aspects of protein synthesis, translational components genes and proofreading were covered as well. The manuscripts represent the extended accounts of the oral presenta tions, and it has been aimed with the concluding remarks at the end of the volume to give a summarizing view of the presentations and the discussions.
Download or read book Study of the Structural Requirements of E Coli Valine Transfer RNA in Aminoacylation and Protein Synthesis written by Mingsong Liu and published by . This book was released on 1995 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Aminoacyl tRNA Synthetases written by Michael Ibba and published by CRC Press. This book was released on 2005-04-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: By virtue of their role as catalysts of the aminoacylation reaction, the aminoacyl-tRNA synthetases ensure that the first step of translation is performed quickly and accurately. In this volume of 36 separate chapters, the many facets of this ancient and ubiquitous family are reviewed, including their surprising structural diversity, enzymology, tRNA interaction properties, and curious alternative functions. These chapters illustrate the degree to which the aminoacyl-tRNA synthetases employ a variety of mechanisms to carry out both the standard functions related to the synthesis of aminoacylated tRNA for protein synthesis, as well as the surprising functions associated with amino acid biosynthesis, cytokine function, and even the processivity of DNA replication. Other chapters explore the regulation of their synthesis, their role in disease, and their prospects as targets for antibacterial therapeutics. This monograph will be a valuable resource for all scientists interested in the fundamentals of protein synthesis from both a basic research and clinical perspective, as well as the relation of translational components to the evolution of the genetic code.
Download or read book Biology of Aminoacyl tRNA Synthetases written by and published by Academic Press. This book was released on 2020-10-23 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Aminoacyl-tRNA Synthetases, Volume 48 in The Enzymes series, highlights new advances in the field, with this new volume presenting interesting chapters on A narrative about our work on the endless frontier of editing, The puzzling evolution of aminoacyl-tRNA synthetases, Structural basis of the tRNA recognition by aminoacyl-tRNA synthetases, Catalytic strategies of aminoacyl-tRNA synthetases, Trans-editing by aminoacyl-tRNA synthetase-like editing domains, Adaptive and maladaptive mistranslation arising from aminoacyl-tRNA synthetases, Non-canonical inputs and outputs of tRNA aminoacylation, Structure and function of multi-tRNA synthetase complexes, Mitochondrial aminoacyl-tRNA synthetases, Non-canonical functions of human cytoplasmic tyrosyl-, tryptophanyl- and other aminoacyl-tRNA synthetases, and much more. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in The Enzymes series
Download or read book Water in Biological and Chemical Processes written by Biman Bagchi and published by Cambridge University Press. This book was released on 2013-11-14 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unified overview of the dynamical properties of water and its unique and diverse role in biological and chemical processes.
Download or read book TRNA written by Dieter Söll and published by . This book was released on 1995 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure and Function of Oxidation Reduction Enzymes written by Å. Åkeson and published by Elsevier. This book was released on 2014-05-17 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure and Function of Oxidation–Reduction Enzymes is a collection of papers presented at the Wenner-Gren Symposium held at the Wenner-Gren Center, Stockholm on August 23-27, 1970. It provides important understanding of the structure and function of oxidation-reduction enzymes: iron, flavin, and nicotinamide enzymes. This book discusses the functional differences among varying structures such cytochrome c, haemoglobins, dehydrogenases, flavins, oestrogens, and peroxidases. It concludes by presenting future expectations, including some questions that need to be addressed. This volume will be of great value to those interested in the present-day research on oxidation-reduction enzymes.
Download or read book Evolution of the Genetic Code written by Shōzō Ōsawa and published by . This book was released on 1995 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic code was deciphered experimentally around 1966 and for a number of years scientists considered it to be "universal" for all forms of life. In 1981 researchers shocked the scientific community with the discovery that the code differed in mitochondria and certain other organisms, evidence that the genetic code was still evolving. This book discusses the distribution and origin of the non-universal codes and examines the possible mechanisms of code changes, making it essential reading for all those interested in evolutionary genetics.
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 Essentials of Biochemistry written by Herbert J. Fromm and published by Springer Science & Business Media. This book was released on 2012-01-05 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook, Essentials of Biochemistry is aimed at chemistry and biochemistry undergraduate students and first year biochemistry graduate students. It incorporates the lectures of the authors given to students with a strong chemistry background. An emphasis is placed on metabolism and reaction mechanisms and how they are studied. As the title of the book implies, the text lays the basis for an understanding of the fundamentals of biochemistry.
Download or read book Essential Microbiology written by Stuart Hogg and published by John Wiley & Sons. This book was released on 2013-06-10 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential Microbiology 2nd Edition is a fully revised comprehensive introductory text aimed at students taking a first course in the subject. It provides an ideal entry into the world of microorganisms, considering all aspects of their biology (structure, metabolism, genetics), and illustrates the remarkable diversity of microbial life by devoting a chapter to each of the main taxonomic groupings. The second part of the book introduces the reader to aspects of applied microbiology, exploring the involvement of microorganisms in areas as diverse as food and drink production, genetic engineering, global recycling systems and infectious disease. Essential Microbiology explains the key points of each topic but avoids overburdening the student with unnecessary detail. Now in full colour it makes extensive use of clear line diagrams to clarify sometimes difficult concepts or mechanisms. A companion web site includes further material including MCQs, enabling the student to assess their understanding of the main concepts that have been covered. This edition has been fully revised and updated to reflect the developments that have occurred in recent years and includes a completely new section devoted to medical microbiology. Students of any life science degree course will find this a concise and valuable introduction to microbiology.
Download or read book Translation Initiation Reconstituted Systems and Biophysical Methods written by and published by Elsevier. This book was released on 2007-10-09 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: For over fifty years the Methods in Enzymology series has been the critically aclaimed laboratory standard and one of the most respected publications in the field of biochemistry. The highly relevant material makes it an essential publication for researchers in all fields of life and related sciences. This volume, the second of three on the topic of Translation Initiation includes articles written by leaders in the field.
Download or read book Translation Mechanisms written by Jacques Lapointe and published by Springer Science & Business Media. This book was released on 2003-07-31 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translation Mechanisms provides investigators and graduate students with overviews of recent developments in the field of protein biosynthesis that are fuelled by the explosive and synergic growth of structural biology, genomics, and bioinformatics. The outstanding progress in our understanding of the structure, dynamics, and evolution of the prokaryotic and eukaryotic translation machinery, as well as applications in medicine and biotechnology, are described in 26 chapters covering recent discoveries on: -the subtleties of tRNA aminoacylation with natural and unnatural amino acids. -the control of mRNA stability, a key step of gene regulation. -ribosome structure and function, in the era of the atomic-crystal resolution of the ribosome. -the regulation of the biosynthesis of the translational machinery components. -the action of a variety of inhibitors of translation and the prospect for clinical studies.
Download or read book Anatomy of Gene Regulation written by Panagiotis A. Tsonis and published by Cambridge University Press. This book was released on 2003-01-13 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents
Download or read book Mechanism of Action of Antieukaryotic and Antiviral Compounds written by Fred E. Hahn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Antibiotics I was published in 1967, the teleological view was held by some that" antibiotics" were substances elaborated by certain microorgan isms for the purpose of competing with other microorganisms for survival in mixed ecological environments. However, not only had J. EHRLICH and his associates shown 15 years earlier that chloramphenicol was produced by Strepto myces venezuelae in cultures of sterilized soils but not in parallel cultures of the same soils which were not sterilized, but operationally, the search for anti cancer antibiotics was actively under way (Antibiotics I reporting on numerous such substances), although the concept of antibiosis could not logically justify such undertakings. This editor hesitates to accept the use of the term "antibiotic" for anti microbial agents of non microbiological origins which is sometimes encountered, but neither does he subscribe to the view that antibiotics are in some fundamental manner different from chemotherapeutic substances of other origins. Modes and mechanisms of action of chemotherapeutic compounds are not systematic functions of their origins nor of the taxonomical position of the target organisms. Consequently, in the selection of topics for Antibiotics III (published in 1975), synthetic drugs and natural products of higher plants (alkaloids) were represented, along with antibiotics in the strict sense of the definition. We now present Antibiotics V, for whose assembly the same selection criteria were applied as for Antibiotics Ill. The aggregate length of the contributions rendered it impractical to place the entire text between the covers of one book.
