Small-angle x-ray scattering analysis of Josephin. (Left) Comparison of the experimental (black line) and calculated SAXS profiles for the RDC-CS ensemble (red line). (Right) For comparison the same plot is shown for the PDB structures 1yzb, 2aga, and 3o65. (b, inset) Alignment of the PDB structures 1yzb (green), 2aga (cyan), and 3o65 (yellow) to a representative structure of the RDC-CS ensemble (magenta). To see this figure in color, go online.