Liposome Floatation Assays to Study Membrane Interactions of Nucleoporins
Marianna Tatarek-Nossol1, Wolfram Antonin2
1Institute of Biochemistry and Molecular Cell Biology, Medical School, RWTH Aachen University, Aachen, Germany.
Methods in Molecular Biology (Clifton, N.J.)
|August 20, 2025
Abstract:
Many nucleoporins interact with the pore membrane, often via amphipathic helices. Liposome floatation assays are convenient and flexible assays to analyze these protein-membrane interactions and their dependence on specific lipid composition and membrane curvature. We outline here our protocols for the generation of different-sized small unilamellar liposomes of defined lipid compositions and describe how these are employed in floatation assays.
Keywords:
Amphipathic helixLipid-protein interactionLiposomeNuclear envelopeNuclear pore complexNucleoporinPhosphoinositidePhospholipidsProtein-membrane interactionSmall unilamellar vesicle

