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 | Capecchi, Mario R.; Thomas, Kirk R. | Site-directed mutagenesis by gene targeting in mouse embryo-derived stem cells | We mutated, by gene targeting, the endogenous hypoxanthine phosphorlbosyl transferase (HPFlT) gene in mouse embryo-derived stem (ES) cells. A specialized construct of the neomycin resistance (NO') gene was introduced into an exon of a cloned fragment of the Hprf gene and used to transfect ES cell... | Site-directed mutagenesis; Hypoxanthine phosphorlbosyl transferase gene; HPFlT gene; Neomycin resistance gene; Homologous recombination; Mouse stem cells; Mouse embryo-derived stem cells | 1987 |