Kit^{tm1(cre/ERT2)Dsa}

A targeting construct with an Frt-flanked neo selection cassette 3' of the cre/ERT2 sequence was used for homologous recombination in ES cells. Cre recombinase was inserted into the ATG site in exon 1 of the Kit locus. Germline transmission of the allele was achieved by crossing to C57BL/J mice. (J:204737)