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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