APBA1 (Amyloid Beta Precursor Protein Binding Family A Member 1) is a Protein Coding gene. Diseases associated with APBA1 include Alzheimer Disease and Neuronal Intranuclear Inclusion Disease. Among its related pathways are Protein-protein interactions at synapses and Neurotransmitter Release Cycle. The protein encoded by APBA1 is a member of the X11 protein family. It is a neuronal adapter protein that interacts with the Alzheimer's disease amyloid precursor protein (APP). It stabilizes APP and inhibits production of proteolytic APP fragments including the A beta peptide that is deposited in the brains of Alzheimer's disease patients. APBA1 product is believed to be involved in signal transduction processes. It is also regarded as a putative vesicular trafficking protein in the brain that can form a complex with the potential to couple synaptic vesicle exocytosis to neuronal cell adhesion.