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Tetramolecular Quadruplex Stability and Assembly

  • Phong Lan Thao TranEmail author
  • Anne De Cian
  • Julien Gros
  • Rui Moriyama
  • Jean-Louis MergnyEmail author
Chapter
Part of the Topics in Current Chemistry book series (TOPCURRCHEM, volume 330)

Abstract

Guanine quadruplexes (G4) are unusual four-stranded nucleic acid structures formed by G-rich DNA/RNA. Beyond their likely biological relevance, the self-assembly, stability, and rigidity of these structures are also interesting for nanotechnology and biotechnology applications. Therefore, efforts are carried out to understand the rules that govern stability and folding of G-quadruplexes. We focus this chapter on tetramolecular conformations which are simple tractable models. We report here the experimental parameters, molecules, and modifications that affect thermal stability and/or association kinetics of these structures. Some chemical modifications which facilitate tetramolecular quadruplex formation and can be useful for nano- or biotechnology are also described.

Keywords

Association kinetics Chemical modifications Nanotechnology and biotechnology applications Tetramolecular quadruplexes Thermal stability 

Abbreviations

A

Adenine

C

Cytosine

CD

Circular dichroism

DNA

Deoxyribonucleic acid

G

Guanine

HIV-1

Human immunodeficiency virus type 1

LNA

Locked nucleic acid

NMR

Nuclear magnetic resonance

O-RNA

2′-O-Methyl ribonucleic acid

PEG

Polyethylene glycol

PNA

Peptide nucleic acid

RNA

Ribonucleic acid

T

Thymine

U

Uracil

UTR

Untranslated region

Notes

Acknowledgments

This work has been supported by ANR (QuantADN, F-DNA and G4-Toolbox), Conseil Régional d’Aquitaine, ARC and FRM. We would like to thank all our collaborators, past and present, for helpful discussions.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Laboratoire ARNAUniversité de BordeauxBordeauxFrance
  2. 2.INSERM, U869, Laboratoire ARNA, IECBPessacFrance
  3. 3.INSERM, U565, CNRS UMR7196, Muséum National d’Histoire NaturelleParis Cedex 05France

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