Notch after cleavage

SJ Bray, M Gomez-Lamarca - Current opinion in cell biology, 2018 - Elsevier
Current opinion in cell biology, 2018Elsevier
The discovery that Notch activation involves a proteolytic cleavage to release the
intracellular domain (NICD) revolutionized the field of Notch signaling. It resulted in a simple
model whereby the cleaved NICD enters the nucleus and activates expression of genes by
forming a DNA bound complex with CSL. However, is it really this simple? The realization
that the outcome from activating Notch varies greatly from cell to cell raised many questions
about what governs the target gene selections in different cell types. Insights have come …
The discovery that Notch activation involves a proteolytic cleavage to release the intracellular domain (NICD) revolutionized the field of Notch signaling. It resulted in a simple model whereby the cleaved NICD enters the nucleus and activates expression of genes by forming a DNA bound complex with CSL. However, is it really this simple? The realization that the outcome from activating Notch varies greatly from cell to cell raised many questions about what governs the target gene selections in different cell types. Insights have come from recent genome-wide studies, which highlight the importance of tissue-specific transcription factors and epigenetics. Co-factors also have been identified that participate in the regulation of enhancers. Finally, it is generally assumed that once cleaved, NICD goes on to do its job, but with a burgeoning number of post-translations, it may not be that simple.
Elsevier