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    Science. 2009 Jul 24;325(5939):433.

    Knockout rats via embryo microinjection of zinc-finger nucleases.

    Source

    Human and Molecular Genetics Center, Medical College of Wisconsin, Milwaukee, WI 52336, USA.

    Abstract

    The toolbox of rat genetics currently lacks the ability to introduce site-directed, heritable mutations into the genome to create knockout animals. By using engineered zinc-finger nucleases (ZFNs) designed to target an integrated reporter and two endogenous rat genes, Immunoglobulin M (IgM) and Rab38, we demonstrate that a single injection of DNA or messenger RNA encoding ZFNs into the one-cell rat embryo leads to a high frequency of animals carrying 25 to 100% disruption at the target locus. These mutations are faithfully and efficiently transmitted through the germline. Our data demonstrate the feasibility of targeted gene disruption in multiple rat strains within 4 months time, paving the way to a humanized monoclonal antibody platform and additional human disease models.

    PMID:
    19628861
    [PubMed - indexed for MEDLINE]
    PMCID: PMC2831805
    Free PMC Article

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