 Like all MAGUK-family proteins, its basic structure includes three PDZ domains, an SH3 domain, and a guanylate kinase-like domain (GK) connected by disordered linker regions.It is almost exclusively located in the post synaptic density of neurons, and is involved in anchoring synaptic proteins.Its direct and indirect binding partners include neuroligin, NMDA receptors, AMPA receptors, and potassium channels.