From: Context dependent reference states of solvent accessibility derived from native protein structures and assessed by predictability analysis
Secondary
Structure
% HOA residues
Number of HOA residues
Alpha-helix
7.73
672
Strand
3.11
271
Beta Bridge
0.21
18
3–10 helix
3.86
336
Bend
21.50
1874
Turn
30.40
2650
Coil
33.00
2870