Figure 1. Generation of a floxed allele of the mouse Synectin gene.
(A) The targeting vector contains: a loxP site (black triangle) into BsrB I restriction site upstream of exon 2, exon 2 cDNA ,a fragment with Neo selection cassette (grey arrow) and a loxP site into the PshAI site downstream of exon 2. The Frt-flanked Neo-cassette was removed by Flp-mediated, site-specific recombination (Frt recombination elements are white triangles). (B) Genomic mouse DNA was genotyped with the oligonucleotides indicated in A (black arrows).