Tg(Flt1-cre/ERT2)1Tmak

A BAC (B6Ng01-247E8) carrying the mouse Flt1 gene was used to generate a transgene by replacing the coding sequence in exon 1 as well as the splice donor site at the junction between exon 1 and intron 1 (50 bp) with a cassette containing the open reading frame for CreERT2 and the Flt1 3' untranslated region. A polyadenylation signal (human growth hormone polyadenylation signal) was inserted 3' of the Flt1 3'UTR sequence. Two independent founder lines were generated, of which one (line 1) showed efficient Cre-mediated recombination and was used for further analyses. (J:341130)