Anti-Kv3.3 antibodies enable researchers to detect and measure the Kv3.3 antigen in biological samples. This target is a reported synonym of the KCNC3 gene, which encodes potassium voltage-gated channel subfamily C member 3. This protein is known to function in potassium ion transport and protein oligomerization, among other biological roles. The human version of Kv3.3 has a canonical amino acid length of 757 residues and a protein mass of 80.6 kilodaltons. It is reported to be localized in the cell membrane and cytoplasm of cells and notably expressed in the small intestine, duodenum, colon, cerebral cortex, and cerebellum. Other names for this target antigen include KSHIIID, KSHIIID, and KV3.3.