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Related Concept Videos

Protein Folding01:25

Protein Folding

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Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
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A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
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Development of a Backbone Cyclic Peptide Library as Potential Antiparasitic Therapeutics Using Microwave Irradiation
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Endless peptides--circular forms in nature.

Anna Adamska, Anna Janecka1

  • 1Department of Biomolecular Chemistry, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland. anna.janecka@umed.lodz.pl.

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Summary
This summary is machine-generated.

Circular peptides from nature offer stable, bioactive scaffolds for drug development. These defense molecules, found in various organisms but not humans, inspire new therapeutic strategies.

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Area of Science:

  • Biochemistry
  • Natural Products Chemistry
  • Pharmacology

Background:

  • Nature offers diverse chemical structures, inspiring drug discovery.
  • Circular peptides, found in bacteria, fungi, plants, and mammals, exhibit remarkable stability and bioactivity.
  • These molecules function as natural defense compounds, protecting host organisms.

Purpose of the Study:

  • To summarize key information on circular peptides.
  • To review their origin, biosynthesis, and biological activities.
  • To highlight their potential as drug development scaffolds.

Main Methods:

  • Literature review of natural product databases.
  • Analysis of biosynthesis pathways.
  • Compilation of reported bioactivities.

Main Results:

  • Circular peptides are widespread in nature, excluding humans.
  • They possess exceptional chemical stability and potent biological effects.
  • Their defensive roles suggest adaptability for medicinal chemistry.

Conclusions:

  • Circular peptides represent a promising class of natural products for drug discovery.
  • Their unique structural and functional properties warrant further investigation.
  • Understanding their origin and biosynthesis can guide synthetic efforts.