Endoplasmic Reticulum/metabolism; Membrane Glycoproteins; Membrane Transport Proteins/chemistry; Nerve Tissue Proteins/chemistry; Alanine/chemistry; Amino Acid Sequence; Animals; Aorta/pathology; Aspartic Acid/chemistry; Bacterial Proteins/metabolism; Biotinylation; Cell Membrane/metabolism; Cells, Cultured; Dopamine Plasma Membrane Transport Proteins; Endothelium, Vascular/metabolism; Epidermal Growth Factor/chemistry; Fluorescence Resonance Energy Transfer; Glycine/chemistry; Luminescent Proteins/metabolism; Lysine/chemistry; Microscopy, Fluorescence; Models, Biological; Molecular Sequence Data; Mutagenesis; Mutation; Neurons/metabolism; Plasmids/metabolism; Protein Binding; Protein Conformation; Protein Structure, Secondary; Protein Structure, Tertiary; Rats; Swine; Transfection