Notch Cleavage Analysis
Notch Cleavage Analysis - Related Videos
01:33
Cleavage and Blastulation
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2019
After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller. Zygotic Genome Activation At the beginning of embryogenesis, maternal mRNAs control development. However, by the eight-cell stage of cleavage, embryonic genes become activated in a process called...
07:33
Physical Properties Of Minerals I: Crystals and Cleavage
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2023
Source: Laboratory of Alan Lester - University of Colorado Boulder The physical properties of minerals comprise various measurable and discernible attributes, including color, streak, magnetic properties, hardness, crystal growth form, and crystal cleavage. Each of these properties are mineral-specific, and they are fundamentally related to a particular mineral’s chemical make-up and atomic structure. This experiment examines two properties that stem primarily from symmetric repetition of...
08:01
Stimulation of Notch Signaling in Mouse Osteoclast Precursors
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Cited by 13 •
2017
Notch signaling is a form of cellular communication that relies upon direct contact between cells. To properly induce Notch signaling in vitro, Notch ligands must be presented to cells in an immobilized state. This protocol describes methods for in vitro stimulation of Notch signaling in mouse osteoclast precursors.
09:16
Analysis of RNA Processing Reactions Using Cell Free Systems: 3' End Cleavage of Pre-mRNA Substrates in vitro
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Cited by 1 •
2014
RNA polymerase II synthesizes a precursor RNA that extends beyond the 3' end of the mature mRNA. The end of the mature RNA is generated cotranscriptionally, at a site dictated by RNA sequences, via the endonuclease activity of the cleavage complex. Here, we detail the method to study cleavage reactions in vitro.
06:40
Quantitative Measurement of γ-Secretase-mediated Amyloid Precursor Protein and Notch Cleavage in Cell-based Luciferase Reporter Assay Platforms
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Cited by 1 •
2018
We have successfully generated two substrate-specific γ-secretase assays. Both cell-based assays presented here are designed to quantify γ-secretase enzymatic activities via the output of firefly luciferase reporters.
FAQs
Sequential receptor processing provides a temporal framework for interpreting Notch activation. Ligand engagement initiates receptor cleavage, followed by gamma-secretase-dependent release of the Notch intracellular domain. Tracking these events helps distinguish an activated signaling state from changes in receptor processing, rather than treating all cleavage-related changes as equivalent.
Ligand interaction, protease activity, and receptor processing represent separate points at which signaling can change. Altered ligand engagement may affect receptor activation, whereas altered protease activity may influence downstream cleavage and intracellular-domain release. Comparing these factors helps identify whether a signaling difference originates at cell contact, proteolytic processing, or a later stage.
Once released by gamma-secretase-dependent processing, the Notch intracellular domain enters the nucleus and alters transcription. This links a membrane-associated receptor event to gene-regulatory changes that influence neural cell fate. In neuroscience, examining this transition helps connect receptor activation with neural progenitor maintenance, differentiation, and broader nervous-system functions.
The analysis uses cleavage-related events to determine whether Notch has been activated and how far processing has progressed. Comparing receptor activation with intracellular-domain release can reveal differences between ligand-associated signaling and downstream processing. This distinction is useful when evaluating how changes in ligand interaction, protease activity, or receptor handling affect the signaling state.
A useful comparison follows Notch processing across conditions that differ in ligand interaction, protease activity, or receptor processing. The resulting patterns can indicate whether signaling changes reflect altered receptor activation or impaired intracellular-domain release. This approach supports mechanistic comparisons without assuming that every change in cleavage produces the same transcriptional or cellular outcome.
In neuroscience, cleavage analysis connects cell-to-cell communication with neural development and adult nervous-system function. It can be applied to questions about neural progenitor maintenance, differentiation, and disease-related pathways. By tracking receptor processing and signaling states, researchers can examine how disruptions in Notch regulation may influence neural cell behavior and disease mechanisms.