Protocols in Current Issue
    Delivery of AAV for Expression of Fluorescent Biosensors in Juvenile Mouse Hippocampus

    Genetically encoded fluorescent biosensors are versatile tools for studying brain metabolism and function in live tissue. The genetic information for these biosensors can be delivered into the brain by stereotaxic injection of engineered adeno-associated viruses (AAVs), which can selectively target different cell types depending on the capsid

    Expression and Purification of Adeno-associated Virus Virus-like Particles in a Baculovirus System and AAVR Ectodomain Constructs in E. coli
    [Abstract] Adeno-associated virus (AAV) is a promising gene therapy vector and the biophysical characterization of its interactions with host proteins is a critical foundation for engineering tissue targeting and immune escape. Presented here are protocols for the production of: (a) the outer protein shells (virus-like particles or VLPs) for serotype 2 ...
    Nab Escaping AAV Mutants Isolated from Mouse Muscles
    Authors:  Zheng Chai, R. Jude Samulski and Chengwen Li, date: 05/05/2018, view: 5652, 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 ...
    Analysis of Replicative Intermediates of Adeno-associated Virus through Hirt Extraction and Southern Blotting
    [Abstract] Adeno-associated virus (AAV) is a small single-stranded DNA virus that requires the presence of a helper virus, such as adenovirus or herpes virus, to efficiently replicate its genome. AAV DNA is replicated by a rolling-hairpin mechanism (Ward, 2006), and during replication several DNA intermediates can be detected. This detailed protocol ...
    Robust Generation of Knock-in Cell Lines Using CRISPR-Cas9 and rAAV-assisted Repair Template Delivery
    Authors:  Giel Vandemoortele, Delphine De Sutter and Sven Eyckerman, date: 04/05/2017, view: 20095, Q&A: 0
    [Abstract] The programmable Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-associated nuclease 9 (Cas9) technology revolutionized genome editing by providing an efficient way to cut the genome at a desired location (Ledford, 2015). In mammalian cells, DNA lesions trigger the error-prone non-homologous end joining (NHEJ) DNA repair ...
    Determination of Adeno-associated Virus Rep DNA Binding Using Fluorescence Anisotropy
    [Abstract] Quantitative measurement of proteins binding to DNA is a requisite to fully characterize the structural determinants of complex formation necessary to understand the DNA transactions that regulate cellular processes. Here we describe a detailed protocol to measure binding affinity of the adeno-associated virus (AAV) Rep68 protein for the ...

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