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The program below will calculate the average hydrophobicity (Kyte-Doolittle values), the average hydrophobic moment (Kyte-Doolittle values with Eisenberg equation), and the average propensity for alpha-helix formation (Chou-Fasman values).

Enter the peptide sequence in single-letter residue format. This program takes up to 60 characters at once. All invalid characters will be removed. The program does not recognize three-letter residue names (eg. Ile, Val).

Enter the sequence below and hit "Submit Sequence".