Figure 1. Protein-protein interactions between cadherins, catenins and the actin cytoskeleton.

Protein interactions formed between cadherin, β-catenin (β-cat), α-catenin monomers (α-catM), α-catenin dimers (α-catD) and actin. Differences in the thickness of the arrows represent strengths of protein-protein interactions (i.e. increased thickness shows increased binding). The interaction between cadherin and β-catenin is regulated by kinases that increase (green box: CK2 and GSK3β) or decrease (red box: Src, Fer, Abl and EGFR) the binding affinity.