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Related Concept Videos

Protein Complex Assembly02:41

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
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Assembly of Cytoskeletal Filaments

Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
DNA as a Genetic Template02:05

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

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Nucleosome Remodeling02:54

Nucleosome Remodeling

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Related Experiment Video

Updated: May 27, 2026

Self-Assembly of Gamma-Modified Peptide Nucleic Acids into Complex Nanostructures in Organic Solvent Mixtures
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Published on: June 26, 2020

Towards biologically active self-assemblies: model nucleotide chimeras.

Corinne Vebert-Nardin1

  • 1Département de chimie minérale, analytique et appliquée, Université de Genève - Sciences II, 30, quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland. corinne.vebert@unige.ch

Chimia
|November 8, 2011
PubMed
Summary

Researchers modified DNA fragments with polymers to create self-assembling nanostructures. These bio-inspired materials show potential for drug delivery, gene therapy, and biomedical devices.

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Area of Science:

  • Biotechnology
  • Polymer Chemistry
  • Nanotechnology

Background:

  • DNA fragments can be modified with polymers to create novel macromolecules.
  • These modified fragments exhibit amphiphilic properties, leading to self-assembly.
  • Understanding self-assembly is crucial for developing functional nanostructures.

Purpose of the Study:

  • To explore polymer modification of DNA for self-assembling nanostructures.
  • To investigate the self-assembly mechanisms of these modified nucleotide sequences.
  • To assess the hybridization capacity and biological potential of the resulting nanostructures.

Main Methods:

  • Grafting hydrophobic polymer segments onto DNA fragments.
  • Utilizing polymer chemistry expertise and modern analytical techniques.
  • Analyzing self-assembly in aqueous solution and on surfaces.

Main Results:

  • Successful creation of amphiphilic nucleotide-based macromolecules.
  • Observation of self-assembled structures in solution and on surfaces.
  • Established understanding of the self-assembly mechanism.

Conclusions:

  • Polymer-modified DNA can form functional nanostructures.
  • These nanostructures demonstrate potential for biological applications.
  • Further research can fine-tune these systems for drug delivery, gene therapy, and biosensors.