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Book A Kinetic Analysis of Human Immunodeficiency Virus Reverse Transcriptase

Download or read book A Kinetic Analysis of Human Immunodeficiency Virus Reverse Transcriptase written by Shawn Patrick Zinnen and published by . This book was released on 1994 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Kinetic Characterization of a Recombinant C terminal Mutant of Reverse Transcriptase from the Human Immunodeficiency Virus

Download or read book Kinetic Characterization of a Recombinant C terminal Mutant of Reverse Transcriptase from the Human Immunodeficiency Virus written by Thomas S. Heard and published by . This book was released on 1992 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Antiretroviral Drugs on the Translocation Status of Human Immunodeficiency Virus Type 1 Reverse Transcriptase

Download or read book Effects of Antiretroviral Drugs on the Translocation Status of Human Immunodeficiency Virus Type 1 Reverse Transcriptase written by Bruno Marchand and published by . This book was released on 2007 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The reverse transcriptase of the Human Immunodeficiency Virus type 1 (HIV-1) is responsible for transcribing the viral single-stranded RNA genome into double-stranded DNA. Due to its vital role in the viral life cycle, it is often targeted in the treatment of HIV-1 infected patients. Inhibitors that block the reverse transcriptase enzyme were shown to interfere with nucleotide incorporation. At the end of a nucleotide incorporation cycle, the newly incorporated substrate is still located in the nucleotide binding site. In order to continue the elongation of the DNA chain, the enzyme has to move by one nucleotide relative to the nucleic acid template to free the nucleotide binding site. This movement is referred to as translocation. Translocation is extremely rapid and is therefore kinetically invisible. In order to study the mechanism of translocation, I developed site-specific footprinting assays with a resolution of a single nucleotide, which allowed us to detect the precise positioning of the reverse transcriptase on a DNA template. Using these techniques, in combination with kinetic analysis as well as other enzymatic assays, I studied the translocational status of the reverse transcriptase in various conditions, and concluded that this enzyme translocates according to a 0́−Brownian ratchet model0́+. In this model, the enzyme oscillates between pre- and post-translocated positions and the nucleotide substrate traps the post-translocational state. I identified important factors that affect the translocational equilibrium: the sequence of the nucleic acid template, the nature of the nucleotide at the 30́9 end of the primer, the presence of mismatches in the double-stranded nucleic acid substrate, the presence of nucleotides, the presence of inhibitors, the nature of these inhibitors, the presence of drug resistance conferring mutations and the temperature are parameters that have all been shown to modify the translocational equilibrium of the reverse" --

Book Human Immunodeficiency Virus Reverse Transcriptase

Download or read book Human Immunodeficiency Virus Reverse Transcriptase written by Stuart LeGrice and published by Springer Science & Business Media. This book was released on 2013-07-23 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Reverse Transcriptase (RT) of Human Immunodeficiency Virus Type 1 (HIV-1) arguably ranks amongst one of the most extensively studied retroviral enzymes. Heterologous expression and purification of HIV-1 RT in the early eighties, approval of the first nucleoside analogue RT inhibitor (NRTI) in 1987, discovery of resistance to RT inhibitors, approval of the first non-nucleoside analogue RT inhibitor (NNRTI) in 1996 and the various crystal structures of RT with and without bound substrate(s) and/or inhibitors represent only a few of the important milestones that describe the a bench-to-bedside success in the continuing effort to combat HIV-1 infection and its consequences. Nucleoside and nonnucleoside RT inhibitors remain important components in frequently used drug regimens to treat the infection. RT inhibitors also play important roles in recently validated strategies to prevent transmission of the virus. The relevance of HIV-1 RT as a drug target has simultaneously triggered interest in basic research studies aimed at providing a more detailed understanding of interactions between proteins, nucleic acids, and small molecule ligands in general terms. In light of the ever-growing knowledge on structure and function of HIV-1 RT, this enzyme serves as a valuable “model system” in efforts to develop novel experimental tools and to explain biochemical processes. This monograph is designed to provide an overview of important aspects in past and current HIV-1 RT research, with focus on mechanistic aspects and translation of knowledge into drug discovery and development. The first section includes chapters with emphasis placed on the coordination of the RT-associated DNA polymerase and ribonuclease H (RNase H) activities. The second covers mechanisms of action and future perspectives associated with NRTIs and NNRTIs, while the third section includes chapters focusing on novel strategies to target the RT enzyme. Chapters of the final part are intended to discuss mechanisms involved in HIV variability and the development of drug resistance. We hope that these contributions will stimulate interest, and encourage research aimed at the development of novel RT inhibitors. The lack of bona fide RNase H inhibitors with potent antiviral activity provides an example for challenges and opportunities in the field.

Book Immunopathogenesis of HIV Infection

Download or read book Immunopathogenesis of HIV Infection written by Anthony S. Fauci and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 5 years, major advances have been made in our understanding of the pathogenesis of human immunodeficiency virus (HIV) disease and in the development of new potent antiviral agents. With regard to HIV pathogenesis, several recent observations have not only changed our perspectives of HIV disease, but have been critical for the design of therapeutic strategies.

Book AIDS Bibliography

Download or read book AIDS Bibliography written by and published by . This book was released on 1995-02 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book HIV  Molecular Biology and Pathogenesis  Viral Mechanisms

Download or read book HIV Molecular Biology and Pathogenesis Viral Mechanisms written by and published by Academic Press. This book was released on 2000-09-07 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cumulative death toll from AIDS has reached 16.3 million individuals, and more than 33 million persons are currently living with HIV-1. Although it is one of the most-widely studied viruses, many mysteries remain about this pathogen. In this comprehensive two-volume set, HIV-1: Molecular Biology and Pathogenesis, leading investigators in HIV research present a timely picture of the molecular mechanisms which guide HIV-1 expression and replication and provide the most current clinical strategies for combating this virus. Twenty-six teams of experts unravel structure-function interactions of HIV-1 with host cells and the resulting pathological consequences, review strategies fo treatment, and describe ongoing progress in developing animal models and prophylactic vaccines.The two volumes, covering viral mechanisms and clinical applications, respectively, are written by an international collection of AIDS expers from North America, Europe, Australia, and Asia. Detailed insights into viral packaging, expression, and assembly Mechanistic understanding of how HIV interacts with receptors and infects cells Delineation of virally encoded regulatory processes unique to HIV Clinical Applications: An updated review of current chemotherapeutics for HIV New concepts in the discovery and design of novel anti-HIV drugs The latest developments in HIV-vaccine research

Book Viral Genome Replication

    Book Details:
  • Author : Craig E. Cameron
  • Publisher : Springer Science & Business Media
  • Release : 2009-05-28
  • ISBN : 038789456X
  • Pages : 636 pages

Download or read book Viral Genome Replication written by Craig E. Cameron and published by Springer Science & Business Media. This book was released on 2009-05-28 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive review of viral genome replication strategies, emphasizing not only pathways and regulation but also the structure-function, mechanism, and inhibition of proteins and enzymes required for this process.

Book Antimicrobial Drug Resistance

Download or read book Antimicrobial Drug Resistance written by Douglas L. Mayers and published by Springer. This book was released on 2017-06-19 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volumes included in Antimicrobial Drug Resistance, Second Edition is an updated, comprehensive and multidisciplinary reference covering the area of antimicrobial drug resistance in bacteria, fungi, viruses, and parasites from basic science, clinical, and epidemiological perspectives. This newly revised compendium reviews the most current research and development on drug resistance while still providing the information in the accessible format of the first edition. The first volume, Antimicrobial Drug Resistance: Mechanisms of Drug Resistance, is dedicated to the biological basis of drug resistance and effective avenues for drug development. With the emergence of more drug-resistant organisms, the approach to dealing with the drug resistance problem must include the research of different aspects of the mechanisms of bacterial resistance and the dissemination of resistance genes as well as research utilizing new genomic information. These approaches will permit the design of novel strategies to develop new antibiotics and preserve the effectiveness of those currently available. The second volume, Antimicrobial Drug Resistance: Clinical and Epidemiological Aspects, is devoted to the clinical aspects of drug resistance. Although there is evidence that restricted use of a specific antibiotic can be followed by a decrease in drug resistance to that agent, drug resistance control is not easily achieved. Thus, the infectious diseases physician requires input from the clinical microbiologist, antimicrobial stewardship personnel, and infection control specialist to make informed choices for the effective management of various strains of drug-resistant pathogens in individual patients. This 2-volume set is an important reference for students in microbiology, infectious diseases physicians, medical students, basic scientists, drug development researchers, microbiologists, epidemiologists, and public health practitioners.

Book Cumulated Index Medicus

Download or read book Cumulated Index Medicus written by and published by . This book was released on 2000 with total page 1796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Viral Replication Enzymes and their Inhibitors Part A

Download or read book Viral Replication Enzymes and their Inhibitors Part A written by and published by Academic Press. This book was released on 2021-10-23 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viral Replication Enzymes and their Inhibitors Part A, Volume 49, the latest release in the Enzymes series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of related topics. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in The Enzymes series

Book Medicinal Chemistry of Bioactive Natural Products

Download or read book Medicinal Chemistry of Bioactive Natural Products written by Xiao-Tian Liang and published by John Wiley & Sons. This book was released on 2006-03-17 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current discoveries and research into bioactive natural products Medicinal Chemistry of Bioactive Natural Products provides a much-needed survey of bioactive natural products and their applications in medicinal chemistry. This comprehensive reference features articles by some of the world's leading scientists in the field on discovery, structure elucidation, and elegant synthetic strategies--developed for natural products--with an emphasis on the structure activity relationship of bioactive natural products. The topics have been carefully chosen on the basis of relevance to current research and to importance as clinicially useful agents. Rather than attempting to be a comprehensive encyclopedia of bioactive natural products, Medicinal Chemistry of Bioactive Natural Products guides the reader to the key developments in the field. By providing not only practical detail but a historical perspective on the chemistry and biology of the compounds under consideration, the book serves as a handy resource for researchers in their own work developing pharmaceuticals, and as an inspiring introduction for young scientists to the dynamic field of bioactive natural products research. Enhanced by examples with updated research results, the discussion covers such topics as: * The chemistry and biology of epothilones * Vancomycin and other glycopeptide antibiotic derivates * Antitumor and other related activities of Taxol and its analogs * The antimalarial properties of the traditional Chinese medicine, Quinghaosu (artemisinin) * Huperzine A: A natural drug for the treatment of Alzheimer's disease * The medicinal chemistry of ginkgolides from Ginkgo biloba * Recent progress in Calophyllum coumarins as potent anti-HIV agents * Plant-derived anti-HIV agents and analogs * Chemical synthesis of annonaceous acetogenins and their structurally modified mimics

Book Index Medicus

Download or read book Index Medicus written by and published by . This book was released on 2003 with total page 2084 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.

Book AIDS Therapy E Book

    Book Details:
  • Author : Raphael Dolin
  • Publisher : Elsevier Health Sciences
  • Release : 2007-12-10
  • ISBN : 1437720536
  • Pages : 1537 pages

Download or read book AIDS Therapy E Book written by Raphael Dolin and published by Elsevier Health Sciences. This book was released on 2007-12-10 with total page 1537 pages. Available in PDF, EPUB and Kindle. Book excerpt: AIDS treatments continues to evolve. Now, so does the definitive reference on this complex and challenging subject! "AIDS Therapy, 3rd Edition" not only brings you comprehensive guidance on the latest treatments for HIV/AIDS and the full range of related disorders and syndromes, but also comes with access to updates online—so you can always tap into the most current therapy guidelines. Written by a "who's who" of leading global experts, the new edition of this classic reference is a must for any clinician who manages patients with HIV/AIDS. The most comprehensive coverage available on AIDS treatment equips you to meet any clinical challenge. Contributions from a large cast of noted international authorities put global "best practices" at your fingertips. Advice from some of the most respected experts in the field helps you manage your patients confidently. Available with a companion website allowing you to access the latest treatment guidelines year after year.