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Protein Folding01:22

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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.
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The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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Many proteins can be classified into two distinct subtypes - globular or fibrous. These two types differ in their shapes and solubilities.
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Updated: Nov 22, 2025

X-Ray Crystallography to Study the Oligomeric State Transition of the Thermotoga maritima M42 Aminopeptidase TmPep1050
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Metal-Binding Foldamers.

Shilpa R Rao1, Shelby L Schettler1, W Seth Horne1

  • 1Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA.

Chempluschem
|January 8, 2021
PubMed
Summary

Researchers explore metal-binding foldamers, artificial molecules inspired by nature. This review surveys the design, synthesis, and characterization of these promising agents for tailored functions.

Area of Science:

  • Biomimetic chemistry
  • Supramolecular chemistry
  • Materials science

Background:

  • Foldamers are sequence-defined oligomers with predictable folding, mimicking natural biomacromolecules.
  • Metal ions and clusters are crucial in proteins for structure and function.
  • Natural systems' use of metals suggests potential for artificial folded structures.

Purpose of the Study:

  • To review the design, synthesis, and characterization of metal-binding foldamers.
  • To highlight the potential of integrating metals into artificial folded backbones.
  • To survey published research on metal-binding foldamer development.

Main Methods:

  • Literature survey of published research on metal-binding foldamers.
  • Analysis of design strategies for creating metal-binding sites within foldamer structures.
Keywords:
foldamersnucleic acidspeptidomimeticsproteomimeticstransition metals

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  • Review of synthetic methodologies for foldamer construction and metal incorporation.
  • Examination of characterization techniques used to confirm structure and metal binding.

    • Main Results:

    • Foldamers can be designed to bind various metal ions and clusters.
    • Diverse synthetic approaches enable the creation of metal-binding foldamers.
    • Characterization methods confirm the successful integration and function of metals in foldamers.
    • Metal-binding foldamers show potential for applications in catalysis, sensing, and medicine.

    Conclusions:

    • Metal-binding foldamers represent a promising class of artificial molecules.
    • The integration of metals into foldamer backbones expands their functional capabilities.
    • Further research in this area could lead to novel materials and therapeutic agents.