Anti-IGHV3-23 antibodies are used in the immunodetection of the protein immunoglobulin heavy variable 3-23. In humans, the canonical protein has a reported length of 117 amino acid residues and a mass of 12.6 kDa. Its subcellular localization is in the cell membrane and is secreted. IGHV3-23 is known to be involved with adaptive immune responses.