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Table 4 MAE values for various angles as predicted by various methods for residues of various 3-state actual SS types in our1321 testing proteins

From: Secondary structure specific simpler prediction models for protein backbone angles

SS-type Residues Method \(\phi\) \(\psi\) \(\theta\) \(\tau\)
Helix 116,691 SPOT-1D 7.51 11.77 3.36 11.99
OPUS-TASS 7.10 11.02   
SAP 6.36 8.14 2.60 9.00
SAP4SS 6.31 8.08 2.53 8.73
Improvement 0.79% 0.74% 2.77% 3.09%
Sheet 68,975 SPOT-1D 16.43 17.85 8.19 23.47
OPUS-TASS 15.93 17.29   
SAP 17.22 16.68 8.32 24.44
SAP4SS 16.48 15.69 7.95 22.58
Improvement − 3.34% 6.31% 3.02% 3.94%
Coil 120,942 SPOT-1D 24.85 37.63 9.28 40.27
OPUS-TASS 24.33 36.78   
SAP 24.65 31.99 8.48 35.03
SAP4SS 24.18 31.30 8.37 34.09
Improvement 0.62% 2.20% 1.31% 2.76%
  1. The emboldened values are the best values over the methods compared