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(A) View of the constriction zone along the z direction. The important residues are in stick, the Asp and Glu in red, the Arg and Lys in blue, the Tyr in yellow. The loop L3 is in red. (B) Schematic view of OmpF along y with the charged residues. (C) Ampicillin molecule in an all-atom representation with atom labels.
