Ensemble restrained data and independent validation of various ensemble sizes. Normalized rmsd for restrained data are shown in the left panel: RDCs (open circles), and experimental CCR rates corrected for anisotropy (open squares), and indirectly restrained anisotropic CCRs (open triangles). Rmsd for unrestrained 3J scalar couplings HN-Hα (filled circles), C’-C’ (filled squares), HN-C’ (filled triangles), and HN-Cβ (stars) are shown in the right panel.