MAGUK p55 subfamily member 2 (MPP2)

Postsynaptic MAGUK scaffold protein that links CADM1 cell adhesion molecules into core elements of the postsynaptic density (By similarity). In CA1 pyramidal neurons, required for synaptic KCNN2-containing channel function and long-term potentiation expression (By similarity).

Appears to negatively regulate SRC function in epithelial cells (PubMed:19665017). .