Anti-Protocadherin gamma Subfamily A, 3 antibodies are used in the immunodetection of the protein encoded by the PCDHGA3 gene. In humans, the canonical protein has a reported length of 932 amino acid residues and a mass of 101 kDa. Its subcellular localization is in the cell membrane. Alternative splicing is reported to yield 2 different isoforms for this protein. The protocadherin gamma subfamily A, 3 protein is involved with cell adhesion and nervous system development, among other functions. Post-translational modifications have been described, including glycosylation. Other names for this target antigen include protocadherin gamma-A3.