A targeting vector was designed to insert a frt-flanked neomycin (neo) resistance cassette and loxP upstream of exon 2 of the mouse opioid receptor (Oprm1) gene. The construct was electroporated into 129S6/SvEv -derived embryonic stem (ES) cells SCR012. The resulting mice were crossed with FRT recombinase expression mice to delete the neo cassette. This mouse strain enables the Cre-mediated deletion of exon 2 and exon 3. (J:291061)
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cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count