Abstract: A computer-implemented method for designing at least one anti-peptide sequence having affinity for target peptide or a fragment thereof suitable for synthesizing peptides and micromolecules, assaying for a target peptides, purifying target peptides, and/or preventing proteolyis of a polypeptide includes identification of the members of the amino acid sequence of the target peptide and their anti-sense or hydropathically complementary amino acids and determining the moving average hydropathy for the target and anti-sense members. The resulting lowest hydropathy identifies the anti-sense amino acid sequence for the target peptide. The members of the target peptide amino acid sequence are obtained along with their member-specific hydropathic values with the hydropathic values summed as a moving average. Anti-sense or complementary amino acid members are identified from the moving average information to generate an array of anti-sense amino acid sequences.