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Known carbohydrate xenoantigens expressed on pig cells
| Carbohydrate | Responsible enzyme | Gene-knockout pig |
|---|---|---|
| Gal | α-1,3-galactosyltransferase | GTKO |
| Neu5Gc | CMAH | CMAHKO |
| Sda | β-1,4 N-acetylgalactosaminyl transferase | β 4GalNT2KO |
CMAH, cytidine monophosphate N-acetylneuraminic acid hydroxylase; Gal, galactose-α1, 3-galactose; Neu5Gc, N-glycolylneuraminic acid.
