Abstract

Myelin-associated glycoprotein (MAG) is a neural cell adhesion molecule expressing the L2/HNK-1 carbohydrate epitope. MAG is heavily glycosylated containinq 30% carbohydrate by weight. In this study, human MAG glycopeptides were isolated and sequenced. Of the 9 MAG sequons 7 were glycosylated and 1 was partially glycosylated at Asn106. Asn332 which was not recovered in the glycopeptide fractions was probably not glycosylated. Furthermore, preliminary data indicate that all NAG glycosylated sequons miqht bear the L2/HNK-1 epitope.

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