Examples of successful QUARK predictions in CASP9 by incorporating distance profiles. Predicted model and native structure are represented by thick and thin backbones separately. Accurately predicted residue pairs are connected by red lines. (a) T0553-D2, TM-score = 0.59, and RMSD = 4.22 Å. (b) The middle part of T0571-D2, TM-score = 0.61 and RMSD = 2.91 Å. (c) T0604-D1, TM-score = 0.48, and RMSD = 4.41 Å.