Cadherin binding partners
are intracellular proteins that link cadherins to the actin cytosceleton. Cadherins are cell-surface proteins that are involved in cell-cell adhesion.
α-N-catenin is expressed mainly in the nervous system. It is a cytoplasmic protein that interacts with N-cadherin and functions in cell-cell adhesion. It is a regulator for the stability of synaptic contacts and is important for cerebellar and hippocampal lamination. There are two isoforms which are differentially expressed during development.
The major part of β-catenin localizes to the cell membrane and is part of E-cadherin/catenin adhesion complexes.