When Cre recombinase (red circle) is introduced, either as a transgene by crossing into a mouse line carrying the targeted gene locus or on a viral vector, the DNA between the loxP sites (red ...

Figure 1C. Projected confocal images (lateral view) of trunk vessels in a hey2zCKOIS/zCKOIS;Ki(flk1-P2A-Cre) embryos at 3.5 dpf. Figure 1D. In the absent of Cre, EGFP was expressed in the DA ...