Rational design of hybrid peptide with high antimicrobial property derived from Melittin and Lasioglossin
Hybridization of Antimicrobial peptides (AMPs) with unique abilities is now considered to improve AMPs' function as promising therapeutic candidates. In the current research, Lasioglossin (LL-III) with a high antimicrobial effect on Acinetobacter (A.) baumanni and Melittin with a high antimicrobial effect against Staphylococcus (S.) aureus were selected for designing a hybrid peptide with modified properties. In the present study, a hybrid peptide with modified properties was designed. Molecular dynamic (MD) and coarse-grained (CG) simulations were done to evaluate the stability and interaction of the hybrid peptide with related membrane models. In this study, a truncated Melittin peptide (11 amino acids) was fused to an LL-III peptide (15 amino acids) to raise the antimicrobial activity. A new hybrid peptide analog (LM1) was selected by replacing the arginine with isoleucine in the fifth position of truncated Melittin to raise the antimicrobial rate of the peptide. The potential for binding of the LM1 to lipid membrane (D factor) was increased from 2.02 related to Melittin to 3.62. Based on VMD results, the N-terminal of LM1 peptide related to LL-III was the alpha helix during 200 ns. However, the C-terminal region related to the Melittin peptide only at 50 ns was in alpha helix form. The RMSD of the LM1 peptide was in the range of 0.2 to 0.8, which, after 160 ns, reached stability. RMSD and RMSF results indicated no unwanted fluctuations during the 200 ns MD simulation. A significant movement of LM1 peptide inside the S. aureus membrane(4.76 nm) and A. baumanni membrane (3.2 nm) was observed by CG simulation. Our findings highlight the high stability of the designed hybrid peptide and its antimicrobial potential to halter A. baumanii and S. aureus bacteria.Communicated by Ramaswamy H. Sarma.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2023 |
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| Enthalten in: |
Journal of biomolecular structure & dynamics - (2023) vom: 26. Okt., Seite 1-9 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Nabizadeh, Somayeh [VerfasserIn] |
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| Links: |
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| Themen: |
Anti-microbial activity |
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| Anmerkungen: |
Date Revised 27.10.2023 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1080/07391102.2023.2274971 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM363773355 |
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| 520 | |a Hybridization of Antimicrobial peptides (AMPs) with unique abilities is now considered to improve AMPs' function as promising therapeutic candidates. In the current research, Lasioglossin (LL-III) with a high antimicrobial effect on Acinetobacter (A.) baumanni and Melittin with a high antimicrobial effect against Staphylococcus (S.) aureus were selected for designing a hybrid peptide with modified properties. In the present study, a hybrid peptide with modified properties was designed. Molecular dynamic (MD) and coarse-grained (CG) simulations were done to evaluate the stability and interaction of the hybrid peptide with related membrane models. In this study, a truncated Melittin peptide (11 amino acids) was fused to an LL-III peptide (15 amino acids) to raise the antimicrobial activity. A new hybrid peptide analog (LM1) was selected by replacing the arginine with isoleucine in the fifth position of truncated Melittin to raise the antimicrobial rate of the peptide. The potential for binding of the LM1 to lipid membrane (D factor) was increased from 2.02 related to Melittin to 3.62. Based on VMD results, the N-terminal of LM1 peptide related to LL-III was the alpha helix during 200 ns. However, the C-terminal region related to the Melittin peptide only at 50 ns was in alpha helix form. The RMSD of the LM1 peptide was in the range of 0.2 to 0.8, which, after 160 ns, reached stability. RMSD and RMSF results indicated no unwanted fluctuations during the 200 ns MD simulation. A significant movement of LM1 peptide inside the S. aureus membrane(4.76 nm) and A. baumanni membrane (3.2 nm) was observed by CG simulation. Our findings highlight the high stability of the designed hybrid peptide and its antimicrobial potential to halter A. baumanii and S. aureus bacteria.Communicated by Ramaswamy H. Sarma | ||
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