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. 2022 Dec 30;15(1):28. doi: 10.3390/toxins15010028

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Deduced amino acid sequences of peptides Ms11a-1–Ms11a-3 (a) Ms11a-4 (b) precursors. The signal peptide is shown in italic; the pro-peptide sequence is underlined; Cys residues are marked in bold; and dissimilar amino acids are highlighted in grey. (c) Multiple sequence alignment for four novel peptides from M. senile and two other sea anemone toxins from structural class 11a—pi-phymatoxin Pcf1a (UniProtKB ID: C0HJB1) from Phymanthus crucifer, a potassium channel inhibitor AcaTx1 from Anthopleura cascaia (PDB ID: 6NK9) as well as psalmotoxin PcTx1 (P60514) from tarantula Psalmopoeus cambridgei. Identical amino acid residues in peptides are highlighted in bold.