Viruses and the Nucleus

Viruses and the Nucleus PDF Author: Julian A. Hiscox
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 300

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Book Description
Presents a global overview of viral (DNA, retro and RNA) interactions with the nucleus and its components. Including contributions from aleading experts in their fields, this is designed to be a definitive text on viral interactions with the nucleus. The book presents a gallery of microscopic images to illustrate the diversity of viral nuclear interactions in full color.

Viruses and the Nucleus

Viruses and the Nucleus PDF Author: Julian A. Hiscox
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 300

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Book Description
Presents a global overview of viral (DNA, retro and RNA) interactions with the nucleus and its components. Including contributions from aleading experts in their fields, this is designed to be a definitive text on viral interactions with the nucleus. The book presents a gallery of microscopic images to illustrate the diversity of viral nuclear interactions in full color.

Molecular Biology of the Cell

Molecular Biology of the Cell PDF Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0

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Book Description


Viral Interactions with the Nucleus

Viral Interactions with the Nucleus PDF Author: Erin Joanne Walker
Publisher: Frontiers Media SA
ISBN: 2889452476
Category :
Languages : en
Pages : 124

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Book Description
Viruses cause numerous medically important diseases, affecting developing, developed, rich and poor alike. The diseases vary in severity, including chickenpox, smallpox, influenza, shingles, herpes, rabies, polio, Ebola, hanta fever, AIDS and the common cold, amongst others. Regardless of the type of tissue or organ affected, all viruses follow the same basic steps to infect host cells. Once in contact with host cells viruses release their genetic material into the cell followed by genome replication, production of viral proteins, assembly of the virus particle and egress from the infected cell. Viruses disrupt normal host cell processes in order to facilitate their own replication/assembly by re-directing cellular machinery for viral transcription, translation, assembly, release and by inhibiting antiviral responses. Regulated nuclear transport of macromolecules through the nuclear pore complex, the only means of transport across the nuclear membrane, is essential for normal cell function and an effective antiviral response. Many viruses disrupt or exploit the nucleocytoplasmic trafficking pathways in host cells. Cytoplasmic viruses exploit the host cell nucleocytoplasmic trafficking machinery to access nuclear functions and/or disrupt nuclear transport, while several DNA viruses use the trafficking pathways to enable export of their components into the cytoplasm; yet others complete their assembly within the nucleus and use nuclear export pathways to access the cytoplasm. Indeed, the many and varied interactions of viruses and viral proteins with nucleocytoplasmic trafficking components have been invaluable in pathway discovery. Importantly, mounting evidence suggests that these interactions play essential roles in virus replication/assembly and hence may be key to understanding pathophysiology of viral diseases. This Frontiers Research Topic is dedicated to the importance of nucleocytoplasmic trafficking to viral pathogenesis.

Virus Structure

Virus Structure PDF Author:
Publisher: Elsevier
ISBN: 0080493777
Category : Science
Languages : en
Pages : 610

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Book Description
Virus Structure covers the full spectrum of modern structural virology. Its goal is to describe the means for defining moderate to high resolution structures and the basic principles that have emerged from these studies. Among the topics covered are Hybrid Vigor, Structural Folds of Viral Proteins, Virus Particle Dynamics, Viral Gemone Organization, Enveloped Viruses and Large Viruses. - Covers viral assembly using heterologous expression systems and cell extracts - Discusses molecular mechanisms in bacteriophage T7 procapsid assembly, maturation and DNA containment - Includes information on structural studies on antibody/virus complexes

Molecular and Cellular Biology of Viruses

Molecular and Cellular Biology of Viruses PDF Author: Phoebe Lostroh
Publisher: CRC Press
ISBN: 1040005330
Category : Science
Languages : en
Pages : 550

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Book Description
This fully revised second edition of Molecular and Cellular Biology of Viruses leads students on an exploration of viruses by supporting engaging and interactive learning. All the major classes of viruses are covered, with separate chapters for their replication and expression strategies, and chapters for mechanisms such as attachment that are independent of the virus genome type. Specific cases drawn from primary literature foster student engagement. End-of-chapter questions focus on analysis and interpretation with answers being given at the back of the book. Examples come from the most-studied and medically important viruses such as SARS-CoV-2, HIV, and influenza. Plant viruses and bacteriophages are also included. There are chapters on the overall effect of viral infection on the host cell. Coverage of the immune system is focused on the interplay between host defenses and viruses, with a separate chapter on medical applications such as antiviral drugs and vaccine development. The final chapter is on virus diversity and evolution, incorporating contemporary insights from metagenomic research. The second edition has updated suggestions for primary literature to discuss along with each chapter. New to this second edition, a supplementary chapter, freely available for download, looks at how virology intersects with public health, and uses the COVID-19 pandemic as a notable example. Key Features Readable but rigorous coverage of the molecular and cellular biology of viruses Molecular mechanisms of all major groups, including plant viruses and bacteriophages, illustrated by example Host-pathogen interactions at the cellular and molecular level emphasized throughout Medical implications and consequences included Quality illustrations available to instructors New to this second edition, interactive quiz questions hosted online

Human Retroviruses

Human Retroviruses PDF Author: Bryan Cullen
Publisher: Oxford University Press
ISBN: 9780199633821
Category : Gene Expression Regulation.
Languages : en
Pages : 220

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Book Description
The first book to specifically cover the molecular biology of retroviruses - of immense importance since the high profile of HIV. International contributors provide detailed reviews of the latest knowledge. An excellent text for both medical and non-medical researchers, it also serves as an illuminating introduction for scientists active in other areas.

Assessment of Future Scientific Needs for Live Variola Virus

Assessment of Future Scientific Needs for Live Variola Virus PDF Author: Committee on the Assessment of Future Scientific Needs for Variola Virus
Publisher: National Academies Press
ISBN: 030959698X
Category : Medical
Languages : en
Pages : 126

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Book Description
In 1980, the World Health Organization (WHO) officially declared that smallpox had been eradicated. In 1986, WHO's international Ad Hoc Committee on Orthopox Virus Infections unanimously recommended destruction of the two remaining official stocks of variola virus, one at the Centers for Disease Control and Prevention and the other at the VECTOR laboratory in Siberia. In June 1999, WHO decided to delay the destruction of these stocks. Informing that decision was Assessment of Future Scientific Needs for Variola Virus, which examines: -- Whether the sequenced variola genome, vaccinia, and monkey pox virus are adequate for future research or whether the live variola virus itself is needed to assist in the development of antiviral therapies. -- What further benefits, if any, would likely be gained through the use of variola in research and development efforts related to agent detection, diagnosis, prevention, and treatment. -- What unique potential benefits, if any, the study of variola would have in increasing our fundamental understanding of the biology, host-agent interactions, pathogenesis, and immune mechanisms of viral diseases.

Human Herpesviruses

Human Herpesviruses PDF Author: Ann Arvin
Publisher: Cambridge University Press
ISBN: 1139461648
Category : Medical
Languages : en
Pages : 1325

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Book Description
This comprehensive account of the human herpesviruses provides an encyclopedic overview of their basic virology and clinical manifestations. This group of viruses includes human simplex type 1 and 2, Epstein–Barr virus, Kaposi's Sarcoma-associated herpesvirus, cytomegalovirus, HHV6A, 6B and 7, and varicella-zoster virus. The viral diseases and cancers they cause are significant and often recurrent. Their prevalence in the developed world accounts for a major burden of disease, and as a result there is a great deal of research into the pathophysiology of infection and immunobiology. Another important area covered within this volume concerns antiviral therapy and the development of vaccines. All these aspects are covered in depth, both scientifically and in terms of clinical guidelines for patient care. The text is illustrated generously throughout and is fully referenced to the latest research and developments.

Essential Human Virology

Essential Human Virology PDF Author: Jennifer Louten
Publisher: Academic Press
ISBN: 0323914926
Category : Science
Languages : en
Pages : 412

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Book Description
Essential Human Virology, Second Edition focuses on the structure and classification of viruses, virus transmission and virus replication strategies based upon type of viral nucleic acid. Several chapters focus on notable and recognizable viruses and the diseases caused by them, including influenza, HIV, hepatitis viruses, poliovirus, herpesviruses and emerging and dangerous viruses. Additionally, how viruses cause disease (pathogenesis) is highlighted, along with discussions on immune response to viruses, vaccines, anti-viral drugs, gene therapy, the beneficial uses of viruses, research laboratory assays and viral diagnosis assays. Fully revised and updated with new chapters on coronaviruses, nonliving infectious agents, and notable non-human viruses, the book provides students with a solid foundation in virology. - Focuses on human diseases and the cellular pathology that viruses cause - Highlights current and cutting-edge technology and associated issues - Presents real case studies and current news highlights in each chapter - Features dynamic illustrations, chapter assessment questions, key terms, and a summary of concepts, as well as an instructor website with lecture slides, a test bank and recommended activities - Updated and revised, with new chapters on coronaviruses, nonliving infectious agents, and notable non-human viruses

Nuclear Export of Viral RNAs

Nuclear Export of Viral RNAs PDF Author: J. Hauber
Publisher: Springer Science & Business Media
ISBN: 3642565972
Category : Science
Languages : en
Pages : 148

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Book Description
In eukaryotic cells, the nuclear genome and its transcriptional apparatus is separated from the site of protein synthesis by the nuclear envelope. Thus, a constant flow of proteins and nucleic acids has to cross the nuclear envelope in both directions. This transport in and out of the nucleus is mediated by nuclear pore complexes (NPCs) and occurs in an energy and signal-dependent manner. Thus, nucleocytoplasmic translocation of macro molecules across the nuclear envelope appears to be a highly specific and regulated process. Viruses that replicate their genome in the cell nucleus are therefore forced to develop efficient ways to deal with the intracellulZlr host cell transport machinery. Historically, investigation of Polyomavirus replication allowed identification ofsequences that mediate nuclear import, which led subsequently to our detailed understanding of the cellular factors that are involved in nuclear import. Transport ofmacromolecules in the opposite direction, however, is less well understood. The investigation of retroviral gene expression in recent years pro vided the first insights into the cellular mechanisms that regulate nuclear export. In particular, the detailed dissection of the function of the human immunodeficiency virus type I (HIV-I) Rev trans-activator protein identified CRMI, as a hona fide nuclear export receptor. CRM I appears to be involved in the nucleocytoplasmic translocation of the vast majority of viral and cellular proteins that have subsequently been found to contain a Rev-type leucine-rich nuclear export signal (NES).