A variety of cellular molecules, including integrins, selectins, catenins, and cadherins, work together to facilitate interaction between cells and between cells and the extracellular matrix. VE-cadherin is a member of the cadherin family of adhesion molecules specific to inter-endothelial cell junctions. At least two other types of cadherins are also expressed by endothelial cells: N-cadherin and P-cadherin. Studies have indicated that P-cadherin is present in only very small amounts and that N-cadherin is spread diffusely throughout endothelial cells. VE-cadherin was targeted in the pig kidney cells featured in the digital video sequence presented in this section with mApple and mEGFP.