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Related Concept Videos

Single-Strand DNA Binding Proteins01:03

Single-Strand DNA Binding Proteins

For successful DNA replication, the unwinding of double-stranded DNA must be accompanied by stabilization and protection of the separated single strands of the DNA. This crucial task is performed by single-strand DNA-binding (SSB) proteins. They bind to the DNA in a sequence-independent manner, which means that the nitrogenous bases of the DNA need not be present in a specific order for binding of SSB proteins to it. The binding of SSB proteins straightens single-stranded DNA (ssDNA) and makes...
Homologous Recombination02:31

Homologous Recombination

The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
Replication in Eukaryotes01:29

Replication in Eukaryotes

In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
Mismatch Repair01:20

Mismatch Repair

Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
Mismatch Repair01:36

Mismatch Repair

Overview
Replication in Prokaryotes01:32

Replication in Prokaryotes

DNA replication has three main steps: initiation, elongation, and termination. Replication in prokaryotes begins when initiator proteins bind to the single origin of replication (ori) on the cell's circular chromosome. Replication then proceeds around the entire circle of the chromosome in each direction from the two replication forks, resulting in two DNA molecules.
Many Proteins Work Together to Replicate the Chromosome
Replication is coordinated and carried out by a host of specialized...

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Atomic Force Microscopy Investigations of DNA Lesion Recognition in Nucleotide Excision Repair
10:59

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Published on: May 24, 2017

DNA cohesion through bubble-bubble recognition.

Hang Qian1, Jinwen Yu, Pengfei Wang

  • 1State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China.

Chemical Communications (Cambridge, England)
|November 14, 2012
PubMed
Summary
This summary is machine-generated.

Researchers discovered a new intermolecular interaction crucial for DNA nanotechnology. This finding advances the field of structural DNA nanotechnology by enabling novel molecular designs.

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Last Updated: May 16, 2026

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Area of Science:

  • Biochemistry
  • Nanotechnology
  • Molecular Biology

Background:

  • Structural DNA nanotechnology utilizes DNA's self-assembly properties.
  • Precise control over DNA structure is essential for advanced applications.
  • Novel intermolecular interactions can enhance DNA-based nanostructures.

Purpose of the Study:

  • To report a newly identified intermolecular interaction.
  • To explore its potential applications in structural DNA nanotechnology.

Main Methods:

  • Characterization of DNA structures.
  • Analysis of intermolecular forces.
  • Computational modeling of DNA interactions.

Main Results:

  • A novel intermolecular interaction was identified and characterized.
  • This interaction influences DNA nanostructure formation.
  • The interaction offers new design principles for DNA nanotechnology.

Conclusions:

  • The discovered interaction represents a significant advancement for DNA nanotechnology.
  • It provides a new tool for designing and building complex DNA nanostructures.
  • Further research will explore the full potential of this interaction.