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Prediction of the secondary and tertiary structures of the fusion proteins. (A) FC protein. (B) CP protein. (C) PF protein. (D) FCP protein. (E) CPF protein. (F) PFC protein. Dimeric and trimeric proteins were abbreviated (color) as follows: FimH (blue), CsgA (red), and PapG (green) proteins. Underlined and bold sequences correspond to the EAAAK linker (gray). Secondary structure prediction: (purple) extended strand, (red) coil, and (blue) helix.
