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. 2013 Apr 12;121(6):657–662. doi: 10.1289/ehp.1206198

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Molecular docking of PCB sulfates into the T₄ binding site on TTR. (A) Comparison between the original crystal structure (PDB no. 2F7I, blue) and docked 2´,6´-difluorobiphenyl-4-carboxylic acid/TTR (red) complex. (B–F) Views of the TTR binding site are shown after docking with 4´PCB 11 sulfate (B), 4´PCB 12 sulfate (C), 2´PCB 3 sulfate (D), 3´PCB 3 sulfate (E), and 4´PCB 3 sulfate (F).