Ribonucleotide Reductase

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Publisher : Nova Publishers
ISBN 13 : 9781604561999
Total Pages : 236 pages
Book Rating : 4.5/5 (619 download)

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Book Synopsis Ribonucleotide Reductase by : Kristoffer Andersson

Download or read book Ribonucleotide Reductase written by Kristoffer Andersson and published by Nova Publishers. This book was released on 2008 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this book is the amazing enzyme ribonucleotide reductase (RNR), the enzyme responsible for the conversion of ribonucleotides to deoxyribonucleotides. The prerequisite for DNA-synthesis and DNA-repair in all living cells is the supply of the four deoxyribonucleotides. Such molecules result from the enzymatically difficult radical-induced reduction of ribonucleotides, a multistep chemical process catalyzed by RNR. RNR was the first enzyme in which the presence of an amino acid radical (a tyrosyl) in E. coli Class Ia RNR has been proven; since then several other biological amino acid radical species have been found on e.g. tryptophan, glycine, cysteine, lysine residues and on amino acid derived small cofactors like 2 tryptophanes in thryptophan-trypthanyl-radical or cysteine-tyrosyl-radical in other enzymes. As all known cellular life forms store their genetic information as DNA, RNR is likely to be found in all growing cells of every living organism, a fact that is confirmed by a rapidly increasing number of genomic screenings.

Hydroxamic Acids

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Publisher : Springer Science & Business Media
ISBN 13 : 3642381111
Total Pages : 312 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Hydroxamic Acids by : Satya P. Gupta

Download or read book Hydroxamic Acids written by Satya P. Gupta and published by Springer Science & Business Media. This book was released on 2013-09-30 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satya P. Gupta's Hydroxamics Acids is the first book to compile invited articles written by international experts on the class of compounds hydroxamic acids. Found to possess a wide spectrum of biological activities, the hydroxamic acids are of interest to theoretical and experimental chemists who can study and make use of them in drug design and development. Chapters in this book provide a diverse and comprehensive coverage of this compound class and consequently this publication is a valuable resource for researchers in chemical, pharmaceutical and biological sciences.

Allosteric Enzymes

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Publisher : CRC Press
ISBN 13 : 1000098826
Total Pages : 269 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Allosteric Enzymes by : Guy Herve

Download or read book Allosteric Enzymes written by Guy Herve and published by CRC Press. This book was released on 2020-11-25 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book compiles detailed information concerning a dozen of the best known allosteric enzymes, and so allows the comparison of their regulatory mechanisms and the confrontation of these mechanisms with the theoretical models. Stimulating and unexpected ideas emerge from these comparisons and emphasize the importance of developing various methods of investigation such as crystallography, X-ray solution scattering, and the study of fast movements in proteins and site-directed mutagenesis. This book is addressed to students and researchers interested in structure-function relationship in proteins, enzymology and metabolic regulation. It is also a basis for teaching.

Allosteric Regulatory Enzymes

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Publisher : Springer Science & Business Media
ISBN 13 : 0387728910
Total Pages : 255 pages
Book Rating : 4.3/5 (877 download)

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Book Synopsis Allosteric Regulatory Enzymes by : Thomas W. Traut

Download or read book Allosteric Regulatory Enzymes written by Thomas W. Traut and published by Springer Science & Business Media. This book was released on 2007-09-11 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the most recent developments in the analysis of allosteric enzymes and provides a logical introduction to the limits for enzyme function as dictated by the factors that are limits for life. The book presents a complete description of all the mechanisms used for changing enzyme activity. It is extensively illustrated to clarify kinetic and regulatory properties. Eight enzymes are used as model systems after extensive study of their mechanisms. Wherever possible, the human form of the enzyme is used to illustrate the regulatory features.

Chemical and Structural Approaches to Rational Drug Design

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Publisher : CRC Press
ISBN 13 : 1000099059
Total Pages : 291 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Chemical and Structural Approaches to Rational Drug Design by : David B. Weiner

Download or read book Chemical and Structural Approaches to Rational Drug Design written by David B. Weiner and published by CRC Press. This book was released on 2020-12-17 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to provide both a broad overview of the current methodologies being applied to drug design and in-depth analyses of progress in specific fields. It details state-of-the-art approaches to pharmaceutical development currently used by some of the world's foremost laboratories. The book features contributors from a variety of fields, new techniques, previously unpublished data, and extensive reference lists.

Bacterial Pathogenesis

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Publisher : Academic Press
ISBN 13 : 9780080860565
Total Pages : 620 pages
Book Rating : 4.8/5 (65 download)

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Book Synopsis Bacterial Pathogenesis by :

Download or read book Bacterial Pathogenesis written by and published by Academic Press. This book was released on 1998-07-01 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Established almost 30 years ago, Methods in Microbiology is the most prestigious series devoted to techniques and methodology in the field. Now totally revamped, revitalized, with a new format and expanded scope, Methods in Microbiology will continue to provide you with tried and tested, cutting-edge protocols to directly benefit your research. Focuses on the methods most useful for the microbiologist interested in the way in which bacteria cause disease Includes section devoted to 'Approaches to characterising pathogenic mechanisms' by Stanley Falkow Covers safety aspects, detection, identification and speciation Includes techniques for the study of host interactions and reactions in animals and plants Describes biochemical and molecular genetic approaches Essential methods for gene expression and analysis Covers strategies and problems for disease control

Metallo-Drugs: Development and Action of Anticancer Agents

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Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 311047073X
Total Pages : 588 pages
Book Rating : 4.1/5 (14 download)

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Book Synopsis Metallo-Drugs: Development and Action of Anticancer Agents by : Astrid Sigel

Download or read book Metallo-Drugs: Development and Action of Anticancer Agents written by Astrid Sigel and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-02-05 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 18, entitled Metallo-Drugs: Development and Action of Anticancer Agents of the series Metal Ions in Life Sciences centers on biological, medicinal inorganic chemistry. The serendipitous discovery of the antitumor activity of cis-diamminodichloroplatinum(II) (cisplatin) by Barnett Rosenberg in the 1960s is a landmark in metallodrug-based chemotherapy. The success of cisplatin in the clinic, followed by oxaliplatin and carboplatin, along with their drawbacks relating mainly to resistance development and severe toxicity, initiated research on polynuclear platinum complexes and on Pt(IV) complexes as prodrugs. Furthermore, the indicated shortcomings led to the exploration of other transition and main group metal ions, among them Ru(II/III), Au(I/III), Ti(IV), V(IV/V), and Ga(III) including also the essential metal ions Fe(II/III), Cu(I/II), and Zn(II). Ionic as well as covalent and non-covalent interactions between structurally very different complexes and biomolecules like nucleic acids, proteins, and carbohydrates are studied and discussed with regard to their possible anticancer actions. Hence, MILS-18 summarizes the research at the forefront of medicinal inorganic chemistry, including studies on the next-generation, tailor-made anticancer drugs. All this and more is treated in an authoritative and timely manner in the 17 stimulating chapters of this book, written by 39 internationally recognized experts from 10 nations (from the US via Europe to China and Australia). The impact of this vibrant research area is manifested by more than 2700 references, nearly 150 illustrations (more than half in color) and several comprehensive tables. Metallo-Drugs: Development and Action of Anticancer Agents is an essential resource for scientists working in the wide range from enzymology, material sciences, analytical, organic, and inorganic biochemistry all the way through to medicine including the clinic ... not forgetting that it also provides excellent information for teaching.

Nucleotide Metabolism

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Publisher : Academic Press
ISBN 13 : 1483261158
Total Pages : 322 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Nucleotide Metabolism by : J. Frank Henderson

Download or read book Nucleotide Metabolism written by J. Frank Henderson and published by Academic Press. This book was released on 2014-06-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nucleotide Metabolism: An Introduction is a textbook exclusively focusing on the study of the aspects of nucleotide metabolism. The book intends to present the chemistry and metabolism of nucleotides, one of the oldest subjects of biochemistry. The text is divided in two parts. Part I considers the general aspects of nucleotide metabolism such as the history of the discovery of nucleotides; functions of nucleotides in cells; and group-transfer reactions during nucleotide metabolism. Part II deals with the synthesis, formation, and conversion of purine ribonucleotides. Biochemists, pharmacologists, and researchers in the fields of medicine and pharmaceuticals will find the book invaluable.

Medicinal Chemistry of Anticancer Drugs

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Publisher : Elsevier
ISBN 13 : 0444626670
Total Pages : 767 pages
Book Rating : 4.4/5 (446 download)

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Book Synopsis Medicinal Chemistry of Anticancer Drugs by : Carmen Avendaño

Download or read book Medicinal Chemistry of Anticancer Drugs written by Carmen Avendaño and published by Elsevier. This book was released on 2015-06-11 with total page 767 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal Chemistry of Anticancer Drugs, Second Edition, provides an updated treatment from the point of view of medicinal chemistry and drug design, focusing on the mechanism of action of antitumor drugs from the molecular level, and on the relationship between chemical structure and chemical and biochemical reactivity of antitumor agents. Antitumor chemotherapy is a very active field of research, and a huge amount of information on the topic is generated every year. Cytotoxic chemotherapy is gradually being supplemented by a new generation of drugs that recognize specific targets on the surface or inside cancer cells, and resistance to antitumor drugs continues to be investigated. While these therapies are in their infancy, they hold promise of more effective therapies with fewer side effects. Although many books are available that deal with clinical aspects of cancer chemotherapy, this book provides a sorely needed update from the point of view of medicinal chemistry and drug design. Presents information in a clear and concise way using a large number of figures Historical background provides insights on how the process of drug discovery in the anticancer field has evolved Extensive references to primary literature

Escherichia Coli and Salmonella

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Publisher :
ISBN 13 : 9781555810849
Total Pages : 2822 pages
Book Rating : 4.8/5 (18 download)

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Book Synopsis Escherichia Coli and Salmonella by : Frederick C. Neidhardt

Download or read book Escherichia Coli and Salmonella written by Frederick C. Neidhardt and published by . This book was released on 1996 with total page 2822 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the long–awaited second edition of an invaluable classic! Escherichia coli occupies a central role in contemporary molecular biology. It is the unicellular organism about which most is known – all molecular and cellular biologists will want a copy of this book. In 154 chapters, 250 expert authors and editors present the state of the art. Completely rewritten and restructured, the second edition offers a whole new approach to the subject.

Human Cytomegalovirus

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Publisher : Springer Science & Business Media
ISBN 13 : 3540773495
Total Pages : 479 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Human Cytomegalovirus by : Thomas E. Shenk

Download or read book Human Cytomegalovirus written by Thomas E. Shenk and published by Springer Science & Business Media. This book was released on 2008-05-09 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume has gathered some of the experts in the field to review aspects of our understanding of CMV and to offer perspectives of the current problems associated with CMV. The editors and authors hope that the chapters will lead to a better understanding of the virus that will assist in the development of new and unique antivirals, a protective vaccine, and a full understanding of CMV's involvement in human disease.

Biological Inorganic Chemistry

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Publisher : University Science Books
ISBN 13 : 9781891389436
Total Pages : 794 pages
Book Rating : 4.3/5 (894 download)

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Book Synopsis Biological Inorganic Chemistry by : Ivano Bertini

Download or read book Biological Inorganic Chemistry written by Ivano Bertini and published by University Science Books. This book was released on 2007 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part A.: Overviews of biological inorganic chemistry : 1. Bioinorganic chemistry and the biogeochemical cycles -- 2. Metal ions and proteins: binding, stability, and folding -- 3. Special cofactors and metal clusters -- 4. Transport and storage of metal ions in biology -- 5. Biominerals and biomineralization -- 6. Metals in medicine. -- Part B.: Metal ion containing biological systems : 1. Metal ion transport and storage -- 2. Hydrolytic chemistry -- 3. Electron transfer, respiration, and photosynthesis -- 4. Oxygen metabolism -- 5. Hydrogen, carbon, and sulfur metabolism -- 6. Metalloenzymes with radical intermediates -- 7. Metal ion receptors and signaling. -- Cell biology, biochemistry, and evolution: Tutorial I. -- Fundamentals of coordination chemistry: Tutorial II.

Artificial Nucleases

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Publisher : Springer Science & Business Media
ISBN 13 : 9783540201120
Total Pages : 330 pages
Book Rating : 4.2/5 (11 download)

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Book Synopsis Artificial Nucleases by : Marina A. Zenkova

Download or read book Artificial Nucleases written by Marina A. Zenkova and published by Springer Science & Business Media. This book was released on 2004-01-07 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of agents capable of cleaving RNA and DNA has attracted considerable attention from researchers in the last few years, because of the immediate and very important applications they can find in the emerging fields of biotechnology and pharmacology. There are essentially two classes of these agents - nucleases that occur naturally inside cells and synthetically produced artificial nucleases. The first class includes protein enzyme nucle ases and catalytic RNA structured ribozymes that perform cleavage of the phosphodiester bonds in nucleic acids according to a hydrolytic pathway in the course of different biochemical processes in the cell. A different pathway is used by some antibiotics which cleave DNA via redox-based mechanisms resulting in oxidative damage of nucleotide units and breakage of the DNA backbone. The above molecules are indispensable tools for manipulating nucleic acids and processing RNA; DNA-cleaving antibiotics and cytotoxic ribonucleases have demonstrated utility as chemotherapeutic agents. The second class, artificial nucleases, are rationally designed to imitate the active centers of natural enzymes by simple structures possessing minimal sets of the most important characteristics that are essential for catalysis. A dif ferent approach, in vitro selection, was also used to create artificial RNA and DNA enzymes capable of cleaving RNA. Being less efficient and specific as compared to the natural enzymes, the primitive mimics are smaller and robust and can function in a broad range of conditions.

The Ribonucleotide Reductase Family

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Publisher : Nova Science Publishers
ISBN 13 : 9781606924198
Total Pages : 0 pages
Book Rating : 4.9/5 (241 download)

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Book Synopsis The Ribonucleotide Reductase Family by : Eduard Torrents

Download or read book The Ribonucleotide Reductase Family written by Eduard Torrents and published by Nova Science Publishers. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ribonucleotide reductase (RNR), a universal enzyme present in essentially all living cells and organisms, has a central role in DNA replication and repair by catalysing production of deoxyribonucleotides from the corresponding ribonucleotides. Three major classes of RNRs are known, differing in their cofactor requirements: class I RNRs (with subclasses Ia and Ib) carry a stable tyrosyl radical and are oxygen-dependent, class II RNRs require the vitamin B12 cofactor 5'-deoxyadenosylcobalamin and are oxygen-independent, and class III RNRs carry a stable glycyl radical and are oxygen-sensitive. Despite these differences, all classes have a similar reaction mechanism and the same highly specific catalytic core structure, indicating that they evolved from a common ancestor. Biochemical studies of RNRs from selected model organisms in combination with the vast number of deduced RNR sequences from publicly available complete genomic sequences show that whereas eukaryotes and their viruses with few exceptions contain only class Ia RNRs, all three major RNR classes are found among prokaryotes and bacteriophages and quite often one organism encodes more than one class of RNR. They are compiled in an open access database, called RNRdb for Ribonucleotide Reductase database that is available at http://rnrdb.molbio.su.se. RNRs are produced in a strictly controlled way depending upon growth phase and environmental cues. The authors describe a comprehensive summary of how the expression of RNR genes is regulated in several eubacterial organisms and in yeast. Due to RNR's importance for the realisation of DNA replication, it has been recognised as a possible target for antiproliferative therapy. The authors present a comprehensive summary of RNR-specific inhibitors that have reached clinical trials and/or are currently used in clinical therapy.

Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 3527343768
Total Pages : 348 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives by : Jesús Fernández Lucas

Download or read book Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives written by Jesús Fernández Lucas and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of innovative tools for creative nucleic acid chemists that open the door to novel probes and therapeutic agents Nucleic acids continue to gain importance as novel diagnostic and therapeutic agents. With contributions from noted scientists and scholars, Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives is a practical reference that includes a wide range of approaches for the synthesis of designer nucleic acids and their derivatives. The book covers enzymatic (including chemo-enzymatic) methods, with a focus on the synthesis and incorporation of modified nucleosides. The authors also offer a review of innovative approaches for the non-enzymatic chemical synthesis of nucleic acids and their analogs and derivatives, highlighting especially challenging species. The book offers a concise review of the methods that prepare novel and heavily modified polynucleotides in sufficient amount and purity for most clinical and research applications. This important book: -Presents a timely and topical guide to the synthesis of designer nucleic acids and their derivatives -Addresses the growing market for nucleotide-derived pharmaceuticals used as anti-infectives and chemotherapeutic agents, as well as fungicides and other agrochemicals. -Covers novel methods and the most recent trends in the field -Contains contributions from an international panel of noted scientistics Written for biochemists, medicinal chemists, natural products chemists, organic chemists, and biotechnologists, Enzymatic and Chemical Synthesis of Nucleic Acid Derivatives is a practice-oriented guide that reviews innovative methods for the enzymatic as well as non-enzymatic synthesis of nucleic acid species.

SAR

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Publisher : CRC Press
ISBN 13 : 1000146898
Total Pages : 386 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis SAR by : Eric J. Lien

Download or read book SAR written by Eric J. Lien and published by CRC Press. This book was released on 2020-09-11 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the quantitative structure-activity relationship of the disposition and activities of various pharmacological groups. It presents a systematic approach for linking different side effect of drugs to their molecular structure and physiochemical properties.

The Ribonucleotide Reductase Family

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Publisher :
ISBN 13 : 9781607411635
Total Pages : 99 pages
Book Rating : 4.4/5 (116 download)

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Book Synopsis The Ribonucleotide Reductase Family by :

Download or read book The Ribonucleotide Reductase Family written by and published by . This book was released on 2009 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: