PCP2 Antibody / Purkinje cell protein 2, 100 ug

PCP2 antibody detects Purkinje cell protein 2, a brain-specific regulator of G protein signaling and neuronal function. Encoded by the PCP2 gene on chromosome 19p13.2, this protein is selectively expressed in cerebellar Purkinje cells and retinal bipolar neurons. PCP2, also known as L7, modulates intracellular signaling by binding to Galpha subunits of heterotrimeric G proteins, influencing synaptic transmission and motor coordination.

PCP2 contains a GoLoco motif that enables high-affinity binding to inactive GDP-bound Galpha subunits, acting as a guanine nucleotide dissociation inhibitor (GDI). Through this interaction, it regulates G protein-coupled receptor (GPCR) signaling pathways that affect neuronal excitability and neurotransmitter release. PCP2 expression increases during cerebellar development, coinciding with synapse formation and maturation of Purkinje cells.

The PCP2 antibody is widely used in neurobiology, developmental, and signaling research to investigate cerebellar function, G protein regulation, and neuronal connectivity. Western blot analysis identifies a 17 kilodalton band corresponding to PCP2, while immunohistochemistry shows intense staining in Purkinje cell somata and dendrites, as well as retinal bipolar neurons. This antibody enables precise visualization of neuronal subtypes and signaling dynamics in the cerebellum and retina.

Altered expression of PCP2 has been associated with ataxia, autism spectrum disorders, and visual processing abnormalities, reflecting its role in synaptic signal modulation. The PCP2 antibody provides a sensitive tool for exploring cerebellar physiology and G protein regulation. NSJ Bioreagents validates this antibody for its applications, ensuring robust detection for neuroscience applications.