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Biochim Biophys Acta. 1999 Jan 6;1426(2):239-57.

The dolichol pathway of N-linked glycosylation.

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  • 1Mikrobiologisches Institut, ETH Zürich, Schmelzbergstr. 7, CH-092 Zürich, Switzerland.

Abstract

The oligosaccharide substrate for the N-linked protein glycosylation is assembled at the membrane of the endoplasmic reticulum. Dolichyl pyrophosphate serves as a carrier in this biosynthetic pathway. In this review, we discuss the function of the lipid carrier dolichol in oligosaccharide assembly and give an overview of the biosynthesis of the different sugar donors required for the building of the oligosaccharide. Yeast genetic techniques have made it possible to identify many different loci encoding specific glycosyltransferases required for the precise and ordered assembly of the dolichyl pyrophosphate-linked oligosaccharide. Based on the knowledge obtained from studying this pathway in yeast, we compare it to the process of N-linked protein glycosylation in archaea. We suggest that N-linked glycosylation in eukaryotes and in archaea share a common evolutionary origin.

PMID:
9878760
[PubMed - indexed for MEDLINE]
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