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Secondary structure of the C-terminus of ataxin-3(Q13). (A) SSP algorithm. Values around zero indicate random coil regions; positive and negative values indicate α-helical or β-sheet conformations, respectively. (B) CSI values (−1 indicates α-helix, 0 random coil, and +1 β-strand). (C) Secondary Cα chemical shifts. (D) Secondary Cβ chemical shifts.
