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Known carbohydrate xenoantigens expressed on pig cells.
| Carbohydrate (Abbreviation) | Responsible enzyme | Gene-knockout pig |
|---|---|---|
| 1.Galactose-α1,3-galactose (Gal). | α1,3-galactosyltransferase | GTKO |
| 2.N-glycolylneuraminic acid (Neu5Gc). | CMAH | CMAH-KO |
| 3.Sda | β−1,4N-acetylgalactosaminyltransferase. | β4GalNT2-KO |
CMAH = Cytidine monophosphate-N-acetylneuraminic acid hydroxylase (CMAH).
