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Structure model of outward-facing NorM-VC. Stereoview (PDB 3MKT) showing TM1–6 in gray and TM7–12 in green. Asp-36 (red) and neighboring Asn-174 and Asn-178 residues (light blue) are shown in a blue circle. Glu-255 (purple) and Asp-371 (orange) are shown in a purple circle with neighboring aromatic residues in yellow. Top, extracellular side; bottom, intracellular side.
