Following tables are created based on the subset of 3496 non-redundant protein chains with sequence similarity <= 30% , structures determined by X-ray to a resolution of 3.0 Å or higher with R<=1.0, downloaded from Dunbrack on 29 March, 2004.

Table 1 The amino acid composition for all 8 shapes

Table 2 The shape distribution for all 20 amino acids.