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. Author manuscript; available in PMC: 2013 Jul 4.
Published in final edited form as: J Biomol NMR. 2013 Jun 2;56(3):227–241. doi: 10.1007/s10858-013-9741-y

Table 1.

Comparison of TALOS+ and TALOS-N predictions.a

Consistent Ambiguous <sd> b (φ/ψ) Rmsd c (φ/ψ)

Total Bad Warning
For chemical shift database

TALOS+ 84.5% d 4.1% e 15.5% d 12.4/11.9 13.6/12.5
TALOS-N 90.7% d [86.6%/4.1%] 3.5% e [2.9%/21%] 9.3% d 8.7/8.5 12.3/12.1 (11.7/11.4)

For 34-protein validation dataset

TALOS+ 84.7% d 4.2% e 15.3% d 12.5/12.0 13.7/12.7
TALOS-N 91.4% d [87.5%/3.9%] 3.5% e [2.8%/23%] 8.6% d 8.5/8.3 12.2/12.1 (11.7/11.5)
a

TALOS+ and TALOS-N predictions were performed for the 580-protein chemical shift database and for a separate 34-protein validation dataset.

b

Average standard deviation of φ/ψ torsion angles among the 10 or 25 best matched tripeptides/heptapeptides for “Good” TALOS+/TALOS-N predictions, representing the average precision of the predictions. See footnote e for the definition of a good/bad prediction.

c

Rmsd values between TALOS+/TALOS-N predicted φ/ψ angles (“Good” predictions only) and φ/ψ angles observed in the reference structures, representing the average accuracy of the predictions; values in parenthesis correspond to residues for which both both TALOS+ and TALOS-N reported “Good” predictions.

d

Fraction of “consistently” predicted residues relative to the total number of residues for which predictions are calculated. Percentages for the “Strong” and “Generous” TALOS-N predictions are given in square brackets.

e

Percentage relative to the total number of “consistently” predicted residues (“Good”+”Bad”). A “bad” prediction is defined based on the criterion sqrt[(φobs − φpred)2 + (ψobs − ψpred) 2] > 60°; otherwise the prediction is defined as “good”. Percentages for the “Strong” and “Generous” TALOS-N predictions are given in square brackets.