Cow lactotransferrin

Fig. 4. Location of the glycosylation sites on the peptide chain of human variants 1 [74] and 2 [ 117], mouse [121], cow [118], mare, goat [81] and swine [80,120] lactotransferrins (a), mapping not determined solid circles on bars, glycosylated sites heavy bars, non-glycosylated sites. In cow lactotransferrin, glycans are of the oligomannosidic type at positions 233 and 545, of the oligomannosidic or iV-acetyllactosaminic type at positions 368 and 476. Only the glycans of the Af-acetyllactosaminic type at position 476 contain one Af-acetylgalactosamine residue.

Fig. 14. Primary structure of diantennary glycans from cow lactotransferrin with an a-l,3-Gal residue in the terminal position [119,236] and with a GalNAc residue replacing a Gal residue.

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