Ready-to-use ELISA kits are available for the detection of KKLC1, an alias of the protein, cancer/testis antigen 83. The official gene symbol is CT83. The protein, with a mass of 12.8 kDa and length of 113 residues, is reported to be membrane-associated. It may be known by other names, including: KKLC1, KK-LC-1, CXorf61, and kita-kyushu lung cancer antigen 1.