Catenin Delta 2 (CTNNd2)

Armadillo-like proteins are characterized by a series of armadillo repeats, first defined in the Drosophila 'armadillo' gene product, that are typically 42 to 45 amino acids long. These proteins can be divided into subfamilies based on the number of repeats, their overall sequence similarity, and the dispersion of the repeats throughout their sequences. Delta-1-catenin and Delta-2-catenin are members of a subfamily of proteins with ten Armadillo-repeats.

Catenin,Delta 2 is expressed in the brain where it is important for normal cognitive development. Like beta-catenin and gamma-catenin, delta-catenins seem to interact with presenilins. These catenin-presenilin interaction have implications for cadherin function and regulation of cell-to-cell adhesion.