The image displays a model of protein interactions at the synaptic membrane using quantitative proteomics. At the center of the interactions are Cav channels (metallic red). With their help, directly and indirectly interacting proteins were found. The image shows the pre and postsynaptic membrane from the side, membrane and cytosolic proteins and one synaptic vesicle (the ball). The proteins are displayed using isosurface hulls in varying colors. The original publication title is : 'Quantitative proteomics of the Cav2 channel nano-environments in the mammalian brain' from August, 24, 2010.