The potential of antifungal peptide Sesquin as natural food preservative
Copyright © 2022 Elsevier B.V. and Société Française de Biochimie et Biologie Moléculaire (SFBBM). All rights reserved..
Sesquin is a wide spectrum antimicrobial peptide displaying a remarkable activity on fungi. Contrarily to most antimicrobial peptides, it presents an overall negative charge. In the present study, we elucidate the molecular basis of its mode of action towards biomimetic membranes by NMR and MD experiments. While a specific recognition of phosphatidylethanolamine (PE) might explain its activity in a variety of different organisms (including bacteria), a further interaction with ergosterol accounts for its strong antifungal activity. NMR data reveal a charge gradient along its amide protons allowing the peptide to reach the membrane phosphate groups despite its negative charge. Subsequently, the peptide gets structured inside the bilayer, reducing its order. MD simulations predict that its activity is retained in conditions commonly used for food preservation: low temperatures, high pressure, or the presence of electric field pulses, making Sesquin a good candidate as food preservative.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:203 |
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| Enthalten in: |
Biochimie - 203(2022) vom: 01. Dez., Seite 51-64 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ramos-Martín, Francisco [VerfasserIn] |
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| Links: |
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| Themen: |
Antifungal |
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| Anmerkungen: |
Date Completed 16.12.2022 Date Revised 21.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biochi.2022.03.015 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM339249919 |
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| 520 | |a Sesquin is a wide spectrum antimicrobial peptide displaying a remarkable activity on fungi. Contrarily to most antimicrobial peptides, it presents an overall negative charge. In the present study, we elucidate the molecular basis of its mode of action towards biomimetic membranes by NMR and MD experiments. While a specific recognition of phosphatidylethanolamine (PE) might explain its activity in a variety of different organisms (including bacteria), a further interaction with ergosterol accounts for its strong antifungal activity. NMR data reveal a charge gradient along its amide protons allowing the peptide to reach the membrane phosphate groups despite its negative charge. Subsequently, the peptide gets structured inside the bilayer, reducing its order. MD simulations predict that its activity is retained in conditions commonly used for food preservation: low temperatures, high pressure, or the presence of electric field pulses, making Sesquin a good candidate as food preservative | ||
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| 650 | 4 | |a Antimicrobial peptide | |
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| 650 | 4 | |a Food biopreservation | |
| 650 | 4 | |a Molecular dynamics | |
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| 700 | 1 | |a Antonietti, Viviane |e verfasserin |4 aut | |
| 700 | 1 | |a Sonnet, Pascal |e verfasserin |4 aut | |
| 700 | 1 | |a Sarazin, Catherine |e verfasserin |4 aut | |
| 700 | 1 | |a D'Amelio, Nicola |e verfasserin |4 aut | |
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