A targeting cassette containing IRES-cre/ERT2-pA and FRT-flanked PGK-neo-bpA sequences was introduced into AB1 ES cells. Homologous recombination inserted into the 3' UTR of exon 3 of the Sox9 locus. Targeted ES cells were injected into C57BL/6 blastocysts to produce chimeras which were crossed with C57BL/6 wild-type animals. The neo cassette was not removed from the targeted allele. (J:166624)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count