Role of N- and O-glycans in polarized biosynthetic sorting

Beth A. Potter, Rebecca P. Hughey, Ora A. Weisz

Research output: Contribution to journalReview article

71 Citations (Scopus)

Abstract

The maintenance of proper epithelial function requires efficient sorting of newly synthesized and recycling proteins to the apical and basolateral surfaces of differentiated cells. Whereas basolateral protein sorting signals are generally confined to their cytoplasmic regions, apical targeting signals have been identified that localize to luminal, transmembrane, and cytoplasmic aspects of proteins. In the past few years, both N- and O-linked glycans have been identified as apical sorting determinants. Glycan structures are extraordinarily diverse and have tremendous information potential. Moreover, because the oligosaccharides added to a given protein can change depending on cell type and developmental stage, the potential exists for altering sorting pathways by modulation of the expression pattern of enzymes involved in glycan synthesis. In this review, we discuss the evidence for glycan-mediated apical sorting along the biosynthetic pathway and present possible mechanisms by which these common and heterogeneous posttranslational modifications might function as specific sorting signals.

Original languageEnglish (US)
Pages (from-to)C1-C10
JournalAmerican Journal of Physiology - Cell Physiology
Volume290
Issue number1
DOIs
StatePublished - Jan 1 2006

Fingerprint

Sorting
Polysaccharides
Proteins
Biosynthetic Pathways
Post Translational Protein Processing
Protein Sorting Signals
Oligosaccharides
Maintenance
Recycling
Modulation
Enzymes

All Science Journal Classification (ASJC) codes

  • Physiology
  • Cell Biology

Cite this

Potter, Beth A. ; Hughey, Rebecca P. ; Weisz, Ora A. / Role of N- and O-glycans in polarized biosynthetic sorting. In: American Journal of Physiology - Cell Physiology. 2006 ; Vol. 290, No. 1. pp. C1-C10.
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Role of N- and O-glycans in polarized biosynthetic sorting. / Potter, Beth A.; Hughey, Rebecca P.; Weisz, Ora A.

In: American Journal of Physiology - Cell Physiology, Vol. 290, No. 1, 01.01.2006, p. C1-C10.

Research output: Contribution to journalReview article

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