Anti-cyclic nucleotide gated channel subunit alpha 4 antibodies are used for the immunodetection of the protein encoded by the CNGA4 gene. In humans, the canonical protein has a reported length of 575 amino acid residues and a mass of 66 kDa. Its subcellular localization is in the membrane. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the Cyclic nucleotide-gated cation channel (TC 1.A.1.5) protein family, it is known to be involved with the sensory perception of smell. Other names for this target antigen include CNG-4, CNG4, CNG5, CNGB2, OCNC2, OCNCBETA, OCNCb, and CNCA2. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species.