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Predicted Ntc90 domain structure. Zigzags on the line denote the TPR motifs 1–9 predicted by Ben-Yehuda et al. (2000) using Prosite Profiles. The spiraling ribbon shown under TPRs 3–9 denotes the TPR superhelix. The second line of zigzags denotes the TPR motifs predicted by Nakatsu et al. (2000) in their study of XAB2. The thick double-headed arrows labeled I, II, III, IV, V, and IV-V mark the regions either deleted or contained in deletion mutants.
