Dissecting the molecular basis of the role of the O-mannosylation pathway in disease: α-dystroglycan and forms of muscular dystrophy.
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| Abstract |
Dystroglycanopathies form a subgroup of muscular dystrophies that arise from defects in enzymes that are implicated in the recently elucidated O-mannosylation pathway, thereby resulting in underglycosylation of α-dystroglycan. The emerging identification of additional brain proteins modified by O-mannosylation provides a broader context for interpreting the range of neurological consequences associated with dystroglycanopathies. This form of glycosylation is associated with protein mucin-like domains that present numerous serine and threonine residues as possible sites for modification. Furthermore, the O-Man glycans coexist in this region with O-GalNAc glycans (conventionally associated with such protein sequences), thus resulting in a complex glycoconjugate landscape. Sorting out the relationships between the various molecular defects in glycosylation and the modes of disease presentation, as well as the regulatory interplay among the O-Man glycans and the effects on other modes of glycosylation in the same domain, is challenging. Here we provide a perspective on chemical biology approaches employing synthetic and analytical methods to address these questions.
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| Authors | David Live, Lance Wells, Geert-Jan Boons |
| Journal | Chembiochem : a European journal of chemical biology (Chembiochem) Vol. 14 Issue 18 Pg. 2392-402 (Dec 16 2013) ISSN: 1439-7633 [Electronic] Germany |
| PMID | 24318691 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Review) |
| Copyright | Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
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