Anti-gamma-aminobutyric acid type A receptor beta 3 subunit antibodies enable researchers to detect and measure the gamma-aminobutyric acid type A receptor beta 3 subunit antigen in biological samples. This target is a reported synonym of the GABRB3 gene, which encodes gamma-aminobutyric acid type A receptor subunit beta3. This protein is known to function in chemical synaptic transmission and signal transduction pathways, among other biological roles. The human version of gamma-aminobutyric acid type A receptor beta 3 subunit has a canonical amino acid length of 473 residues and a protein mass of 54.1 kilodaltons, although 4 isoforms have been identified. It is reported to be localized in the cytoplasmic vesicles and cell membrane of cells. Other names for this target antigen include DEE43, ECA5, and EIEE43.