Anti-IGHV1-69 antibodies are used in the immunodetection of the protein immunoglobulin heavy variable 1-69. In humans, the canonical protein has a reported length of 117 amino acid residues and a mass of 12.7 kDa. Its subcellular localization is in the cell membrane and is secreted. IGHV1-69 is known to be involved with adaptive immune responses.