A loxP site was inserted upstream of exon 1 and a floxed neo cassette was inserted downstream of exon 1. Germ line, cre-mediated recombination was used to remove the neo cassette leaving exon 1 floxed. (J:137655)
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A loxP site was inserted upstream of exon 1 and a floxed neo cassette was inserted downstream of exon 1. Germ line, cre-mediated recombination was used to remove the neo cassette leaving exon 1 floxed. (J:137655)