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. 2013 Sep 18;14:276. doi: 10.1186/1471-2105-14-276

Table 1.

Cross-validated results showing the performance of the three search strategies in positioning targets to within the published error margin of OPM

 
Within OPM error
Outside OPM error
All targets
Search type Type Within OPM error Mean tilt Max tilt Mean tilt Max tilt Mean tilt Max tilt
GA
Alpha
86.9%
0.56
2.98
3.58
7.61
1.07
2.12 
Direct
Alpha
80.3%
0.77
4.83
6.94
28.44
1.98
2.66 
Grid
Alpha
79.2%
0.74
3.74
5.04
14.68
1.63
1.67 
GA
Beta
80.6%
1.03
3.62
9.25
20.02
3.77
3.82 
Direct
Beta
83.3%
1.76
6.90
13.71
29.97
3.75
3.03 
Grid Beta 77.7% 2.35 10.03 14.12 37.64 4.97 2.74 

Type indicates alpha-helical or beta-barrel. Tilt angles are the deltas compared to OPM and are measured in degrees. Mean z-shift is the mean z-coordinate delta compared to OPM calculated using all transmembrane segment boundary residues, measured in angstroms.