Structure superpositions. Structure bundles superimposed for minimal backbone RMSD of the CYRANGE-determined residue ranges, indicated in red. Other residues are in black. Separate superpositions are shown for each domain. (a) 11 proteins for which low-precision (left) and high-precision (right) NMR structures are available (see Methods). (b) 26 proteins, 23 of which had been used earlier for evaluating the FindCore algorithm.