Provided below are ELISA kits targeting cancer/testis antigen family 45 member A5, a human protein encoded by CT45A5. This protein is 189 amino acids long with a reported mass of 21.2 kDa. Other alias names for this protein include: Cancer/testis antigen 45-3, Cancer/testis antigen 45-4, Cancer/testis antigen 45A3, Cancer/testis antigen 45A4, CT45-3, CT45-4, and CT45.5.