Histo-blood group ABO system transferase (NAGAT) [Includes- Glycoprotein-fucosylgalactoside alpha-N- acetylgalactosaminyltransferase (EC 2.4.1.40) (Fucosylglycoprotein alpha-N-acetylgalactosaminyltransferase) (Histo-blood group A transferase) (A transfera; This protein is the basis of the ABO blood group system. The histo-blood group ABO involves three carbohydrate antigens- A, B, and H. A, B, and AB individuals express a glycosyltransferase activity that converts the H antigen to the A antigen (by addition of UDP-GalNAc) or to the B antigen (by addition of UDP-Gal), whereas O individu [...] (353 aa)