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. 2022 Jul 14;9:898627. doi: 10.3389/fmolb.2022.898627

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Copyright © 2022 Medina-Ortiz, Contreras, Amado-Hinojosa, Torres-Almonacid, Asenjo, Navarrete and Olivera-Nappa.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Fourier spectra of encoded amino acid sequences with different activities are visually separated. Sub figures show the Fourier spectrum of different sequences of peptides, encoded according to the groups of properties proposed in this article, represented in panels (A–I). We analyse two types of peptides: Antimicrobial (AMPs) and non-Antimicrobial (nonAMP). AMPs are subsequently divided into five categories: Antibacterial Peptides (AB), Anticancer Peptides (AC), Antifungal Peptides (AF), Anti-HIV Peptides (AHIV), and Antiviral Peptides (AV). The signals analyzed show a clear differentiation for AMPs concerning nonAMPs. N for frequency normalization = 128.