Article ; Online: Soluble and multivalent Jag1 DNA origami nanopatterns activate Notch without pulling force.
2024 Volume 15, Issue 1, Page(s) 465
Abstract: The Notch signaling pathway has fundamental roles in embryonic development and in the nervous system. The current model of receptor activation involves initiation via a force-induced conformational change. Here, we define conditions that reveal pulling ... ...
| Abstract | The Notch signaling pathway has fundamental roles in embryonic development and in the nervous system. The current model of receptor activation involves initiation via a force-induced conformational change. Here, we define conditions that reveal pulling force-independent Notch activation using soluble multivalent constructs. We treat neuroepithelial stem-like cells with molecularly precise ligand nanopatterns displayed from solution using DNA origami. Notch signaling follows with clusters of Jag1, and with chimeric structures where most Jag1 proteins are replaced by other binders not targeting Notch. Our data rule out several confounding factors and suggest a model where Jag1 activates Notch upon prolonged binding without appearing to need a pulling force. These findings reveal a distinct mode of activation of Notch and lay the foundation for the development of soluble agonists. |
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| MeSH term(s) | Receptors, Notch/metabolism ; Jagged-1 Protein/genetics ; Jagged-1 Protein/metabolism ; Signal Transduction/physiology ; Calcium-Binding Proteins/metabolism |
| Chemical Substances | Receptors, Notch ; Jagged-1 Protein ; Calcium-Binding Proteins |
| Language | English |
| Publishing date | 2024-01-18 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 2553671-0 |
| ISSN | 2041-1723 ; 2041-1723 |
| ISSN (online) | 2041-1723 |
| ISSN | 2041-1723 |
| DOI | 10.1038/s41467-023-44059-4 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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