SAPAP4 Activators

SAPAP4, or Synapse-Associated Protein 90/Postsynaptic Density-95-Associated Protein 4, is a protein encoded by the DLGAP4 gene in humans. It's part of the SAPAP family, also known as DLGAP (Disks Large Associated Proteins) family, which includes four known members (SAPAP1 to 4).These proteins are integral components of the postsynaptic density (PSD), a protein complex found at the postsynaptic terminals of neurons where they play a significant role in synaptic signaling and plasticity. SAPAP proteins interact with other key components of the PSD, including PSD-95 and Shank proteins, to modulate synaptic strength and remodeling.

While all SAPAP proteins share these general roles, SAPAP4, in particular, is known to be expressed in various brain regions, including the cerebellum and hippocampus, suggesting roles in motor coordination and learning/memory, respectively. Dysregulation of SAPAP proteins has been implicated in various neuropsychiatric disorders. For instance, mutations in the DLGAP family have been linked to obsessive-compulsive disorder (OCD), autism, and schizophrenia.Understanding the functions of SAPAP4 could provide valuable insights into the molecular mechanisms underlying synaptic connectivity and plasticity, and their implications in neurological and psychiatric disorders.