C4ST1 is an alias for the gene, Carbohydrate (chondroitin 4) sulfotransferase 11, in humans. Other names include: Carbohydrate sulfotransferase 11; Chondroitin 4-O-sulfotransferase 1; Chondroitin 4-sulfotransferase 1; C4S-1; C4ST-1; Carbohydrate sulfotransferase 11 ; C4ST; HSA269537. The encoded protein is an enzyme with an amino acid length of 352 and a mass of 41.6 kDa. C4ST1 is a member of the Sulfotransferase 2 family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.