Viruses

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    Protocols in Current Issue
    Viral Chromosome Conformation Capture (V3C) Assays for Identifying Trans-interaction Sites between Lytic Viruses and the Cellular Genome
    Authors:  Kinjal Majumder, Maria Boftsi and David J Pintel, date: 03/20/2019, view: 17, Q&A: 0
    The folding mechanisms of the mammalian genome package our genetic material into the nucleus, and in doing so, dictate its appropriate replication and expression. Chromosome conformation capture technology has enabled the dissection of the folding ...
    Viral Chromosome Conformation Capture (V3C) Assays for Identifying Trans-interaction Sites between Lytic Viruses and the Cellular Genome
    Authors:  Kinjal Majumder, Maria Boftsi and David J Pintel, date: 03/20/2019, view: 17, Q&A: 0
    [Abstract] The folding mechanisms of the mammalian genome package our genetic material into the nucleus, and in doing so, dictate its appropriate replication and expression. Chromosome conformation capture technology has enabled the dissection of the folding principles of the cellular genome. This has led to a better understanding of the role played by ...
    On-demand Labeling of SNAP-tagged Viral Protein for Pulse-Chase Imaging, Quench-Pulse-Chase Imaging, and Nanoscopy-based Inspection of Cell Lysates
    Authors:  Roland Remenyi, Raymond Li and Mark Harris, date: 02/20/2019, view: 479, Q&A: 0
    [Abstract] Advanced labeling technologies allow researchers to study protein turnover inside intact cells and to track the labeled protein in downstream applications. In the context of a viral infection, the combination of imaging and fluorescent labeling of viral proteins sheds light on their biological activity and interaction with the host cell. Initial ...
    Analysis of Early Phase HIV-1 Replication and Integration Events by Using Real-time PCR
    Authors:  Graf Laura, Steven P. Moran, Sally Ro, Carlos M.C. de Noronha and Binshan Shi, date: 02/20/2019, view: 333, Q&A: 0
    [Abstract] Upon entry into a host cell, the HIV-1 virus undergoes a series of critical early replication events including reverse transcription, nuclear import, and integration of its cDNA into the host genome. Molecular assays used to detect and analyze changes in HIV-1 early phase replication events are valuable tools in developing potential antiretroviral ...
    Production, Titration and Imaging of Zika Virus in Mammalian Cells
    Authors:  Wesley Freppel, Clément Mazeaud and Laurent Chatel-Chaix, date: 12/20/2018, view: 797, Q&A: 0
    [Abstract] Since the outbreak of Zika virus (ZIKV) in Latin America and the US in 2016, this flavivirus has emerged as a major threat for public health. Indeed, it is now clear that ZIKV is vertically transmitted from the infected mother to the fetus and this may lead to severe neurological development defects including (but not restricted to) neonate ...
    In vitro Membrane Interaction and Liposome Fusion Assays Using Recombinant Hepatitis C Virus Envelope Protein E2
    [Abstract] In order to study the mechanism underlying the Hepatitis C Virus (HCV) fusion process we have performed assays using phospholipid liposomes and a truncated form of E2 protein, E2661 (amino acids 384-661 of the HCV polyprotein) lacking the transmembrane region. E2661 has been previously generated by using the baculovirus ...
    Quantification of Infectious Sendai Virus Using Plaque Assay
    Authors:  Narihito Tatsumoto, Takamasa Miyauchi, Moshe Arditi and Michifumi Yamashita, date: 11/05/2018, view: 822, Q&A: 0
    [Abstract] Sendai virus (SeV) is an enveloped, single-stranded RNA virus of the family Paramyxoviridae. SeV is a useful tool to study its infectious pathomechanism in immunology and the pathomechanism of a murine model of IgA nephropathy. Virus quantification is essential not only to determine the original viral titers for an appropriate ...
    Rice Ragged Stunt Virus Propagation and Infection on Rice Plants
    Authors:  Chao Zhang, Chaonan Shi, Dong Chen and Jianguo Wu, date: 10/20/2018, view: 765, Q&A: 0
    [Abstract] Virus inoculation is a basic experimental procedure to evaluate the resistance of a rice variety or a transgenic material upon virus infection. We recently demonstrated that Rice Ragged Stunt Virus (RRSV), an oryzavirus that is transmitted by brown planthopper (BPH), can suppress jasmonic acid-mediated antiviral defense through ...
    Detection and Differentiation of Multiple Viral RNAs Using Branched DNA FISH Coupled to Confocal Microscopy and Flow Cytometry
    Authors:  Nicholas van Buuren and Karla Kirkegaard, date: 10/20/2018, view: 995, Q&A: 0
    [Abstract] Due to the exceptionally high mutation rates of RNA-dependent RNA polymerases, infectious RNA viruses generate extensive sequence diversity, leading to some of the lowest barriers to the development of antiviral drug resistance in the microbial world. We have previously discovered that higher barriers to the development of drug resistance can be ...
    HIVGKO: A Tool to Assess HIV-1 Latency Reversal Agents in Human Primary CD4+ T Cells
    Authors:  Emilie Battivelli and Eric Verdin, date: 10/20/2018, view: 936, Q&A: 0
    [Abstract] While able to suppress HIV replication in HIV infected individuals, combination antiretroviral therapy (ART) fails to eliminate viral latent reservoir, which consists in integrated transcriptional silenced HIV provirus. So far, identification of latently-infected cells has relied on activating cells to induce expression of HIV proteins which can ...
    H1N1 Virus Production and Infection
    Authors:  Binbin Zhao, Jiaoyu Shan, Rui Xiong, Ke Xu and Bin Li, date: 10/20/2018, view: 735, Q&A: 0
    [Abstract] Influenza A virus is a member of orthomyxoviridae family causing wide-spread infections in human respiratory tract. Mouse infection model is widely used in antiviral research and pathogenesis study against influenza A virus. Here, we report a protocol in infected mice with different virus doses and strains to explore how an inhibitor of ...



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