Jag1 and Ddr1 are co-localized in hepatic artery and bile duct at 2 weeks of age.

<p>A, B, C. Ddr1 (red) and Jag1 (blue) are expressed in hepatic artery in the mouse liver at 2 weeks of age (HA, panel C). While Jag1 is highly expressed in the endothelium, Ddr1 expression appears to be confined to the smooth muscle wall of the blood vessel. Ddr1 and Jag1 are both expressed in areas of intercellular junctions within bile ducts (arrows, panels A and B). (Scale bar in [C] = 25 μ for [A] through [C]).