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Curr Opin Struct Biol. 2003 Oct;13(5):621-30.

O-mannosyl glycans: from yeast to novel associations with human disease.

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Lehrstuhl für Zellbiologie und Pflanzenphysiologie, Universität Regensburg, 93040, Regensburg, Germany.


In yeasts and other fungi, O-mannosyl glycans constitute a major protein modification that is essential for cell viability. For several decades, protein O-mannosylation was considered a yeast-specific modification. Thus, it was especially interesting when it became evident that O-mannosyl glycans in mammals are not as rare as previously thought. O-mannosyl glycans are abundant in the mammalian brain and are also an abundant modification of alpha-dystroglycan, a component of the dystrophin-glycoprotein complex. Recently, mutations in genes that are or might be involved in the glycosylation of alpha-dystroglycan have been identified. Their association with neuromuscular diseases has focused the attention of different research areas on protein O-mannosylation.

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