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2015 ; 25
(11
): 697-707
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Ligand-Independent Mechanisms of Notch Activity
#MMPMID26437585
Palmer WH
; Deng WM
Trends Cell Biol
2015[Nov]; 25
(11
): 697-707
PMID26437585
show ga
Interaction between the Notch receptor and Delta-Serrate-Lag2 (DSL) ligands is
generally deemed to be the starting point of the Notch signaling cascade, after
which, Notch is cleaved and the intracellular domain acts as a transcriptional
coactivator. By contrast, Notch protein can become activated independent of
ligand stimulus through recently identified endosomal trafficking routes as well
as through aberrant regulation of Notch components during Notch trafficking,
ubiquitination, and degradation. In this review, we summarize genes implicated in
ligand-independent Notch activity and remark on the mechanisms by which this
process could occur.