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Strain-dependent structure and dynamics of NS1ED. Structures of (A) free Ud and (B) free 1918 NS1ED proteins. Residues that exhibited Rex are shown in red spheres. (C) The 15N CPMG-RD profiles of two dynamic residues in Ud NS1ED: 800 MHz (red open circles) and 600 MHz (black closed circles). Solid lines correspond to the global fit of the data.
