title: Quantitative analyses of nucleic Acid stability under the molecular crowding condition induced by cosolutes.
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.
authors.affiliation: Frontier Institute for Biomolecular Engineering Research (FIBER), Konan University, Kobe, Japan.
authors.forename: Hisae
authors.initials: H
authors.lastname: Tateishi-Karimata
authors.affiliation: Frontier Institute for Biomolecular Engineering Research (FIBER), Konan University, Kobe, Japan.|Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, Kobe, Japan.
authors.forename: Shu-Ichi
authors.initials: SI
authors.lastname: Nakano
authors.affiliation: Frontier Institute for Biomolecular Engineering Research (FIBER), Konan University, Kobe, Japan.|Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, Kobe, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Sugimoto
mesh_terms: D002412:Cations / Q000737:chemistry; D002942:Circular Dichroism; D004247:DNA / Q000737:chemistry*; D054856:G-Quadruplexes; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D009696:Nucleic Acids / Q000737:chemistry*; D013816:Thermodynamics; D014867:Water / Q000737:chemistry
chemical_list: D002412:Cations; D009696:Nucleic Acids; D014867:Water; D004247:DNA