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2014 ; 453
(2
): 235-42
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Significance of glycosylation in Notch signaling
#MMPMID24909690
Takeuchi H
; Haltiwanger RS
Biochem Biophys Res Commun
2014[Oct]; 453
(2
): 235-42
PMID24909690
show ga
Notch signaling is essential for cell-fate specification in metazoans, and
dysregulation of the pathway leads to a variety of human diseases including heart
and vascular defects as well as cancer. Glycosylation of the Notch extracellular
domain has emerged as an elegant means for regulating Notch activity, especially
since the discovery that Fringe is a glycosyltransferase that modifies O-fucose
in 2000. Since then, several other O-glycans on the extracellular domain have
been demonstrated to modulate Notch activity. Here we will describe recent
results on the molecular mechanisms by which Fringe modulates Notch activity,
summarize recent work on how O-glucose, O-GlcNAc, and O-GalNAc glycans affect
Notch, and discuss several human genetic disorders resulting from defects in
Notch glycosylation.
|Animals
[MESH]
|Congenital Disorders of Glycosylation/genetics/metabolism
[MESH]