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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.
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There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
RNA Structure01:23

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Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
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Protein and Protein Structure02:15

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Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
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Single-Strand DNA Binding Proteins01:03

Single-Strand DNA Binding Proteins

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Related Experiment Video

Updated: May 20, 2026

Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes
05:37

Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes

Published on: April 4, 2025

Tetramolecular quadruplex stability and assembly.

Phong Lan Thao Tran1, Anne De Cian, Julien Gros

  • 1Laboratoire ARNA, Université de Bordeaux, 33000, Bordeaux, France, thao.tran@inserm.fr.

Topics in Current Chemistry
|July 4, 2012
PubMed
Summary
This summary is machine-generated.

Guanine quadruplexes (G4) are four-stranded nucleic acid structures with potential in nanotechnology. This study explores factors influencing the stability and formation of tetramolecular G4 conformations for biotechnological applications.

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Last Updated: May 20, 2026

Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes
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Published on: April 4, 2025

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Published on: September 19, 2017

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
10:23

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Published on: May 8, 2015

Area of Science:

  • Biochemistry
  • Nanotechnology
  • Biotechnology

Background:

  • Guanine quadruplexes (G4) are complex nucleic acid structures with potential applications.
  • Understanding G4 folding and stability is crucial for harnessing their properties.

Purpose of the Study:

  • To investigate factors affecting the thermal stability and association kinetics of tetramolecular G4 conformations.
  • To identify chemical modifications that enhance tetramolecular G4 formation for nano- and biotechnological uses.

Main Methods:

  • Experimental analysis of tetramolecular G4 conformations.
  • Evaluation of various parameters, molecules, and chemical modifications impacting G4 stability and kinetics.

Main Results:

  • Identified key experimental parameters, molecules, and modifications influencing G4 thermal stability and association kinetics.
  • Described specific chemical modifications that facilitate tetramolecular G4 formation.

Conclusions:

  • Tetramolecular G4 conformations serve as tractable models for studying G4 properties.
  • Findings provide insights into controlling G4 stability and formation for advanced applications in nanotechnology and biotechnology.