Anti-IGLC3 antibodies are used in the immunodetection of the protein immunoglobulin lambda constant 3 (Kern-Oz+ marker). In humans, the canonical protein has a reported length of 106 amino acid residues and a mass of 11.3 kDa. Its subcellular localization is in the cell membrane and is secreted. IGLC3 is known to be involved with adaptive immune responses.