title: Do 'lipidic particles' represent intermembrane attachment sites?
abstract: Although freeze-fracture electron microscopy is normally analysed with the presumption that particles represent proteins embedded within the membrane, particles which appeared to represent inverted lipid micelles within membranes have been reported. I have now confirmed the occurrence of particles in protein-free liposomes, but have found that they behave like intermembrane attachment sites rather than structures within a membrane.
mesh_terms: D002118:Calcium; D002308:Cardiolipins; D002448:Cell Adhesion; D005614:Freeze Fracturing; D008081:Liposomes; D008563:Membrane Lipids; D008954:Models, Biological; D010713:Phosphatidylcholines
chemical_list: D002308:Cardiolipins; D008081:Liposomes; D008563:Membrane Lipids; D010713:Phosphatidylcholines; D002118:Calcium