Self-assembly to function: design, synthesis, and broad spectrum antimicrobial properties of short hybrid E-vinylogous lipopeptides

S Shiva Shankar, Sushil N Benke, Narem Nagendra, Prabhakar Lal Srivastava, Hirekodathakallu V Thulasiram, Hosahudya N Gopi

Research output: Contribution to journalArticlepeer-review

Abstract

Nonribosomal E-vinylogous γ-amino acids are widely present in many peptide natural products and have been exploited as inhibitors for serine and cysteine proteases. Here, we are reporting the broad spectrum antimicrobial properties and self-assembled nanostructures of various hybrid lipopeptides composed of 1:1 alternating α- and E-vinylogous residues. Analysis of the results revealed that self-assembled nanostructures also play a significant role in the antimicrobial and hemolytic activities. In contrast to the α-peptide counterparts, vinylogous hybrid peptides displayed excellent antimicrobial properties against various bacterial and fungal strains. Peptides that adopted nanofiber structures displayed less hemolytic activity, while peptides that adopted nanoneedle structures displayed the highest hemolytic activity.

Original languageEnglish
Pages (from-to)8468-74
Number of pages7
JournalJournal of Medicinal Chemistry
Volume56
Issue number21
Early online date31 Oct 2013
DOIs
Publication statusPublished - 14 Nov 2013
Externally publishedYes

Keywords

  • Anti-Bacterial Agents/chemical synthesis
  • Antifungal Agents/chemical synthesis
  • Candida albicans/drug effects
  • Dose-Response Relationship, Drug
  • Drug Design
  • Escherichia coli/cytology
  • Hemolysis
  • Lipopeptides/chemical synthesis
  • Microbial Sensitivity Tests
  • Microscopy, Atomic Force
  • Molecular Structure
  • Particle Size
  • Structure-Activity Relationship
  • Surface Properties

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