Anti-HNSPC antibodies are used in antigen-specific immunodetection in biological samples. The target HNSPC is a known alias name of the protein potassium voltage-gated channel subfamily Q member 2, encoded by the KCNQ2 gene in humans. This 872-amino acid residue protein is reported to associate with KCNQ3 to form a potassium channel with essentially identical properties to the channel underlying the native M-current, a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons as well as the responsiveness to synaptic inputs. It is localized to the cell membrane of the cell and features ubiquitinated and phosphorylated post-translational modifications. It is reported to be expressed in the testis, hippocampus, cerebral cortex, cerebellum, and caudate. Other synonyms for HNSPC include BFNC, DEE7, and EBN.