[cellular_component] COPI-coated Golgi to ER transport vesicle <sep> cytoplasm <sep> cytosol <sep> dendrite <sep> endosome <sep> extracellular region <sep> heterotrimeric G-protein complex <sep> membrane <sep> neuronal cell body <sep> perinuclear region of cytoplasm <sep> plasma membrane <sep> recycling endosome <sep> ruffle