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. Author manuscript; available in PMC: 2010 Nov 11.
Published in final edited form as: Structure. 2009 Nov 11;17(11):1515–1527. doi: 10.1016/j.str.2009.09.006

Figure 2.

Figure 2

The accuracy of torsion angles obtained from NMR chemical shifts by programs TOPOS (11 proteins) and TALOS (37 proteins) is compared to that given by SPINEXI. Accuracy is measured by Q60°, the fraction of residues for which both ϕ and ψ angles are less than 60° away from their respective native values. SPINE XI makes equally or more accurate prediction for 20 proteins (42%). NMR-derived angles are only slightly more accurate than SPINE XI for an additional 10 proteins (less than 5% difference) (dashed line).