Anti-IGKV3-11 antibodies are used in the immunodetection of the protein immunoglobulin kappa variable 3-11. In humans, the canonical protein has a reported length of 115 amino acid residues and a mass of 12.6 kDa. Its subcellular localization is in the cell membrane and is secreted. IGKV3-11 is known to be involved with adaptive immune responses.