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Updated: Feb 12, 2026

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Analysis of SNARE-mediated Membrane Fusion Using an Enzymatic Cell Fusion Assay
Published on: October 19, 2012
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Calcium accelerates SNARE-mediated lipid mixing through modulating α-synuclein membrane interaction
Zeting Zhang1, Xin Jiang2, Danrui Xu2
1Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei 430071, PR China.
Biochimica Et Biophysica Acta. Biomembranes
|April 8, 2018
Summary
Calcium ions (Ca2+) regulate alpha-synuclein
Area of Science:
- Neuroscience
- Biochemistry
- Cell Biology
Background:
- Alpha-synuclein (α-synuclein) aggregation is implicated in Parkinson's disease.
- Alpha-synuclein's interaction with cell membranes is crucial for its function and pathology.
- Calcium ions (Ca2+) are known to regulate alpha-synuclein membrane interactions.
Purpose of the Study:
- To investigate the physiological role of Ca2+ in modulating alpha-synuclein's interaction with cell membranes.
- To understand how Ca2+ affects alpha-synuclein's inhibitory role in membrane fusion.
Main Methods:
- Solution state Nuclear Magnetic Resonance (NMR) spectroscopy.
- Ensemble fluorescence fusion assay.
Main Results:
- Calcium ions (Ca2+) disrupt the interaction between alpha-synuclein and cell membranes.
- This disruption by Ca2+ reduces alpha-synuclein's inhibition of SNARE-mediated membrane fusion.
- Consequently, Ca2+ accelerates SNARE-mediated membrane fusion.
Conclusions:
- Calcium ions (Ca2+) modulate the membrane-mediated functions of alpha-synuclein.
- This finding provides insights into the role of Ca2+ in Parkinson's disease pathogenesis.
- Understanding Ca2+ 's effect on alpha-synuclein is important for Parkinson's disease research.
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