UPMC University Paris 1 article published in JoVE Biology Pulling Membrane Nanotubes from Giant Unilamellar Vesicles Coline Prévost*1,2,3, Feng-Ching Tsai*1,4, Patricia Bassereau1,4, Mijo Simunovic1,5 1Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, 2Department of Genetics and Complex Diseases, T. H. Chan School of Public Health, Harvard Medical School, 3Department of Cell Biology, Harvard Medical School, 4Sorbonne Universités, UPMC University Paris 06, 5Center for Studies in Physics and Biology, The Rockefeller University Many proteins in the cell sense and induce membrane curvature. We describe a method to pull membrane nanotubes from lipid vesicles to study the interaction of proteins or any curvature-active molecule with curved membranes in vitro.