PRKCA-binding protein (PICK1)

PRKCA-binding protein, commonly known as Protein Interacting with C Kinase 1 (PICK1), is a peripheral membrane adapter protein essential for the trafficking and organization of various membrane-bound receptors and transporters. It is characterized by a PDZ domain that mediates protein-protein interactions and a BAR domain that facilitates binding to curved lipid membranes. In the central nervous system, PICK1 is a critical regulator of synaptic plasticity, particularly through its role in the internalization and recycling of AMPA-type glutamate receptors (specifically the GluR2 subunit) during long-term depression. Beyond its neuronal roles, PICK1 is involved in the biogenesis of insulin granules in pancreatic beta cells and the formation of the acrosome in developing sperm. Due to its involvement in neuropathic pain, drug addiction, and metabolic regulation, PICK1 has become a target of interest for drug development. Therapeutic strategies focus on inhibiting its PDZ domain using small molecules like FSC231 or peptide-based inhibitors to disrupt pathological protein interactions and restore normal receptor trafficking.

Other names

Protein interacting with C kinase 1Protein kinase C-alpha-binding proteinPRKCABPPICK

Inhibition of the PDZ domain to disrupt protein-protein interactions and modulate receptor trafficking