Unit

UNIT 7.19 Quantitative Analyses of Nucleic Acid Stability Under the Molecular Crowding Condition Induced by Cosolutes

  1. Hisae Tateishi-Karimata1,
  2. Shu-ichi Nakano1,2,
  3. Naoki Sugimoto1,2

Published Online: 1 JUN 2013

DOI: 10.1002/0471142700.nc0719s53

Current Protocols in Nucleic Acid Chemistry

Current Protocols in Nucleic Acid Chemistry

How to Cite

Tateishi-Karimata, H., Nakano, S.-i. and Sugimoto, N. 2013. Quantitative Analyses of Nucleic Acid Stability Under the Molecular Crowding Condition Induced by Cosolutes. Current Protocols in Nucleic Acid Chemistry. 53:7.19:7.19.1–7.19.17.

Author Information

  1. 1

    Frontier Institute for Biomolecular Engineering Research (FIBER), Konan University, Kobe, Japan

  2. 2

    Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, Kobe, Japan

Publication History

  1. Published Online: 1 JUN 2013

Abstract

A variety of biomolecules, including nucleic acids, proteins, polysaccharides, and other soluble and insoluble low-molecular weight components, are present in living cells. These molecules occupy a significant fraction of the cellular volume (up to 40%), resulting in a highly crowded intracellular environment. This situation is referred to as molecular crowding. Although the thermodynamic stabilities of DNA structures are known to be altered in a crowded environment, less is known about the behavior of nucleic acids and their interactions with cations and water molecules under such conditions. This unit describes methods that can be used to quantitatively analyze the molecular crowding effects caused by cosolutes on the thermodynamic stability, hydration, and cation binding of nucleic acid structures. Curr. Protoc. Nucleic Acid Chem. 53:7.19.1-7.19.17. © 2013 by John Wiley & Sons, Inc.

Keywords:

  • molecular crowding;
  • hydration;
  • cation binding;
  • thermodynamics;
  • nucleic acids