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Quantity of information calculated according to Equation (1): Blue line—information carried by one amino acid, whereby the frequency of occurrence of a given amino acid in the non-redundant protein sub-base (“PDB-based”) [10] is taken into account; Orange line—the amount of information needed to identify a specific set of Phi and Psi angles (accuracy 5 deg × 5 deg) while taking into account the probability distribution (Ramachandran map—energy) for a given amino acid [10].
