alexa Targetted correction of a mutant HPRT gene in mouse embryonic stem cells.


Advancements in Genetic Engineering

Author(s): Doetschman T, Gregg RG, Maeda N, Hooper ML, Melton DW,

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Abstract Two recent developments suggest a route to predetermined alterations in mammalian germlines. These are, first, the characterization of mouse embryonic stem (ES) cells that can still enter the germline after genetic manipulation in culture and second, the demonstration that homologous recombination between a native target chromosomal gene and exogenous DAN can be used in culture to modify specifically the target locus. We here use gene targetting functionally to correct the mutant hypoxanthine-guanine phosphoribosyl transferase (HPRT) gene in the ES cell line which has previously been isolated and used to produce an HPRT-deficient mouse. This modification of a chosen gene in pluripotent ES cells demonstrates the feasibility of this route to manipulating mammalian genomes in predetermined ways. This article was published in Nature and referenced in Advancements in Genetic Engineering

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