CTAGE1 encodes the human gene, Cutaneous T-cell lymphoma-associated antigen 1. It may also be known as: cTAGE family member 2; Protein cTAGE-2; Cancer/testis antigen 21.2; CT21.2; cutaneous T-cell lymphoma-associated antigen 2; cancer/testis antigen family 21, member 1; cancer/testis antigen family 21, member 2; CT21.1; CTAGE; CTAGE-1; CTAGE-2. The encoded protein has an amino acid length of 745 and a mass of 85.3 kDa. Other isoforms may exist. CTAGE1 is a member of the CTAGE family.