SDCCAG3 is a symbol for the gene, Serologically defined colon cancer antigen 3, in humans. Other names include: Antigen NY-CO-3; NY-CO-3. The encoded protein has an amino acid length of 435 and a mass of 48.0 kDa. Other isoforms may exist. SDCCAG3 is a member of the SDCCAG3 family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.