SSPO is a symbol for the gene, SCO-spondin, in humans. Other names include: subcommissural organ spondin; SCO protein, thrombospondin domain containing. The encoded protein has an amino acid length of 5147 and a mass of 547.5 kDa. SSPO is a member of the Thrombospondin family. This gene shares homology with other species, including: Mouse, Rat, Frog, Chicken.