Munc18c Regulates Syntaxin 4 and Inhibits Membrane Fusion
Author Information
Author(s): Brandie Fiona M., Aran Veronica, Verma Avani, McNew James A., Bryant Nia J., Gould Gwyn W.
Primary Institution: University of Glasgow
Hypothesis
What is the role of Munc18c in regulating membrane fusion mediated by the Syntaxin 4/SNAP-23/VAMP2 complex?
Conclusion
Munc18c directly inhibits membrane fusion mediated by the Syntaxin 4/SNAP-23/VAMP2 SNARE complex.
Supporting Evidence
- Munc18c inhibits GLUT4 exocytosis in response to insulin.
- Homozygous knockout of Munc18c in mice increases GLUT4 exocytosis sensitivity.
- Over-production of Munc18c in adipocytes inhibits insulin-stimulated GLUT4 translocation.
Takeaway
Munc18c is a protein that stops certain cells from fusing together when they should, which is important for how cells handle sugar.
Methodology
Biochemical approaches were used to characterize the interaction of Munc18c with SNARE proteins and to examine its role in regulating liposome fusion.
Limitations
The study primarily focuses on in vitro conditions, which may not fully replicate physiological environments.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website