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Related Concept Videos

Formation of Lipopolysaccharides01:19

Formation of Lipopolysaccharides

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Lipopolysaccharides (LPS) are crucial components of the outer membrane of Gram-negative bacteria, serving both structural and functional roles. It contributes to membrane stability and protects bacteria from host immune responses. LPS is composed of three major regions—lipid A, a core oligosaccharide, and an O antigen. The biosynthesis and assembly of LPS involve a highly coordinated set of enzymatic reactions and transport mechanisms. Additionally, LPS is recognized as an endotoxin,...
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Peptidoglycan Synthesis01:28

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Structure of PeptidoglycanPeptidoglycan is a vital structural component of the bacterial cell wall, providing mechanical strength and shape to the cell. It consists of repeating units of two sugars—N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)—linked by β-1,4 glycosidic bonds. These sugar chains are cross-linked by short peptide chains, forming a mesh-like polymer that surrounds the bacterial plasma membrane.Cytoplasmic Phase – Precursor SynthesisPeptidoglycan...
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Related Experiment Video

Updated: Aug 17, 2025

An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity
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Scalable downstream method for the cyclic lipopetide jagaricin.

Jakob Stein1, Nicolas Schlosser1,2, Bettina Bardl1

  • 1Bio Pilot Plant Leibniz Institute for Natural Product Research and Infection Biology Hans-Knöll-Institute Jena Germany.

Engineering in Life Sciences
|December 14, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed an 11-step process to produce gram quantities of the antifungal cyclic lipopeptide jagaricin. This method overcomes limitations in jagaricin accessibility, enabling further research and potential applications.

Keywords:
Janthinobacterium agaricidamnosumantifungalantimicrobialbiosurfactantlipopeptides

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Area of Science:

  • Biochemistry
  • Microbiology
  • Chemical Engineering

Background:

  • Cyclic lipopeptides exhibit significant antimicrobial potential.
  • Jagaricin, a cyclic lipopeptide from *Janthinobacterium agaricidamnosum*, shows promising antifungal activity.
  • Limited availability of jagaricin hinders research into its applications and chemical modification.

Purpose of the Study:

  • To develop a scalable downstream process for producing high-purity jagaricin.
  • To overcome the challenge of jagaricin's low accessibility for further scientific investigation.

Main Methods:

  • A novel 11-step process chain was designed for jagaricin isolation.
  • The process addresses the unique challenge of jagaricin binding to microbial biomass, unlike typical foam fractionation methods.

Main Results:

  • Gram-scale quantities of jagaricin were successfully produced.
  • The isolated jagaricin achieved a purity exceeding 95%.

Conclusions:

  • The developed process chain enables sufficient jagaricin production for future research.
  • This advancement facilitates studies on jagaricin's antifungal applications and chemical derivatization.