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. 2009 Apr 27;9:25. doi: 10.1186/1472-6807-9-25

Table 3.

Distribution of 8000 HOA residues environments in various secondary structures.

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

For each tripeptide environment, (central) residue with highest ASA is selected and distribution of such residues in various secondary structures is calculated.