Neurobeachin binds to type II regulatory subunits of protein kinase A and anchors/targets them to the membrane. It may anchor the kinase to cytoskeletal and/or organelle-associated proteins. Neurobeachin, is also a neuron-specific multidomain protein of 327 kDa with a high-affinity binding site for the type II regulatory subunit of protein kinase A. Neurobeachin is peripherally associated with pleomorphic tubulovesicular endomembranes near the trans sides of Golgi stacks and throughout the cell body and cell processes. It is also found in a subpopulation of synapses, where it is concentrated at the postsynaptic plasma membrane.
Synonyms: A-kinase anchor protein 550, d AKAP 550, Neurobeachin protein, Rugose protein, AKAP550, NBEA_DROME.