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    HCV Reporter System (Viral Infection-Activated Split-Intein-Mediated Reporter System) for Testing Virus Cell-to-cell Transmission ex-vivo
    Authors:  Fanfan Zhao, Ting Zhao, Libin Deng, Dawei Lv, Xiaolong Zhang, Xiaoyu Pan, Jun Xu and Gang Long, date: 08/05/2018, view: 175, Q&A: 0
    Hepatitis C virus (HCV) spread involves two distinct entry pathways: cell-free transmission and cell-to-cell transmission. Cell-to-cell transmission is not only an efficient way for viruses to spread but also an effective method for escaping ...
    HCV Reporter System (Viral Infection-Activated Split-Intein-Mediated Reporter System) for Testing Virus Cell-to-cell Transmission ex-vivo
    Authors:  Fanfan Zhao, Ting Zhao, Libin Deng, Dawei Lv, Xiaolong Zhang, Xiaoyu Pan, Jun Xu and Gang Long, date: 08/05/2018, view: 175, Q&A: 0
    [Abstract] Hepatitis C virus (HCV) spread involves two distinct entry pathways: cell-free transmission and cell-to-cell transmission. Cell-to-cell transmission is not only an efficient way for viruses to spread but also an effective method for escaping neutralizing antibodies. We adapted the viral infection-activated split-intein-mediated reporter system ...
    BMV Propagation, Extraction and Purification Using Chromatographic Methods
    [Abstract] Brome mosaic virus (BMV) is a well-known plant virus representing single-stranded RNA (ssRNA) positive-sense viruses. It has been widely used as a model in multiple studies concerning plant virus biology, epidemiology and the application of viral capsids in nanotechnology. Herein, we describe a method for BMV purification based on ion-exchange and ...
    Sleeping Beauty Transposon-based System for Rapid Generation of HBV-replicating Stable Cell Lines
    Authors:  Jin-Wei Zheng, Jia-Li Cao and Quan Yuan , date: 07/05/2018, view: 309, Q&A: 0
    [Abstract] The stable HBV-transfected cell lines, which based on stable integration of replication-competent HBV genome into hepatic cells, are widely used in basic research and antiviral drug evaluation against HBV. However, previous reported strategies to generate HBV-replicating cell lines, which primarily rely on random integration of exogenous DNA by ...
    Protocol for RYMV Inoculation and Resistance Evaluation in Rice Seedlings
    Authors:  Agnès Pinel-Galzi, Eugénie Hébrard, Oumar Traoré, Drissa Silué and Laurence Albar, date: 06/05/2018, view: 575, Q&A: 0
    [Abstract] Rice yellow mottle virus (RYMV), a mechanically transmitted virus that causes serious damage to cultivated rice plants, is endemic to Africa. Varietal selection for resistance is considered to be the most effective and sustainable management strategy. Standardized resistance evaluation procedures are required for the identification and ...
    Virucidal and Neutralizing Activity Tests for Antiviral Substances and Antibodies
    Authors:  Chie Aoki-Utsubo, Ming Chen and Hak Hotta, date: 05/20/2018, view: 783, Q&A: 0
    [Abstract] In a narrow definition, virucidal activity represents the activity by which to interact with and physically disrupt viral particles. In a broad definition, it includes the activity by which to functionally inhibit (neutralize) viral infectivity without apparent morphological alterations of the viral particles. The viral infectivity can be measured ...
    Time-of-addition and Temperature-shift Assays to Determine Particular Step(s) in the Viral Life Cycle that is Blocked by Antiviral Substance(s)
    Authors:  Chie Aoki-Utsubo, Ming Chen and Hak Hotta, date: 05/05/2018, view: 612, Q&A: 0
    [Abstract] Viruses infect their host cells to produce progeny virus particles through the sequential steps of the viral life cycle, such as viral attachment, entry, penetration and post-entry events. This protocol describes time-of-addition and temperature-shift assays that are employed to explore which step(s) in the viral life cycle is blocked by an ...
    Detecting the Interaction of Double-stranded RNA Binding Protein, Viral Protein and Primary miRNA Transcript by Co-immunoprecipitation in planta
    Authors:  Lijia Zheng, Chao Zhang, Jianguo Wu and Yi Li, date: 05/05/2018, view: 481, Q&A: 0
    [Abstract] MicroRNAs (miRNAs) play important roles in plant growth, development, and response to infection by microbes. Double-stranded RNA binding protein 1 (DRB1) facilitates the processing of primary miRNA transcripts into mature miRNAs. Recently, we found that NS3 protein encoded by rice stripe virus (RSV) associates with DRB1 and promotes miRNA ...
    Nab Escaping AAV Mutants Isolated from Mouse Muscles
    Authors:  Zheng Chai, R. Jude Samulski and Chengwen Li, date: 05/05/2018, view: 800, Q&A: 0
    [Abstract] Neutralizing antibodies (Nabs) are a major challenge in clinical trials of adeno-associated virus (AAV) vector gene therapy, because Nabs are able to inhibit AAV transduction in patients. We have successfully isolated several novel Nab-escaped AAV chimeric capsids in mice by administrating a mixture of AAV shuffled library and patient serum. These ...
    Host-regulated Hepatitis B Virus Capsid Assembly in a Mammalian Cell-free System
    Authors:  Kuancheng Liu and Jianming Hu, date: 04/20/2018, view: 808, Q&A: 0
    [Abstract] The hepatitis B virus (HBV) is an important global human pathogen and represents a major cause of hepatitis, liver cirrhosis and liver cancer. The HBV capsid is composed of multiple copies of a single viral protein, the capsid or core protein (HBc), plays multiple roles in the viral life cycle, and has emerged recently as a major target for ...
    Metal-tagging Transmission Electron Microscopy for Localisation of Tombusvirus Replication Compartments in Yeast
    Authors:  Isabel Fernández de Castro and Cristina Risco, date: 04/20/2018, view: 765, Q&A: 0
    [Abstract] Positive-stranded (+) RNA viruses are intracellular pathogens in humans, animals and plants. To build viral replicase complexes (VRCs) viruses manipulate lipid flows and reorganize subcellular membranes. Redesigned membranes concentrate viral and host factors and create an environment that facilitates the formation of VRCs within replication ...