Figure 1From: Position-specific propensities of amino acids in the β-strandOccurrence Frequency of β -strands. Frequency of occurrence of a given strand length in the non-redundant protein database. A Gaussian curve is fitted to the plot. This fit has a center at 4.2 residues, a width of 4.9 residues and an amplitude of 2650 occurrences.Back to article page