Volumetric properties of nucleic acids

Area of Science:

• Biophysical Chemistry
• Molecular Biology
• Structural Biology

Background:

• Nucleic acid structures are stabilized by intra- and intermolecular interactions.
• Understanding these interactions is crucial for molecular recognition processes.
• Hydration plays a significant role in modulating nucleic acid stability.

Purpose of the Study:

• To review recent progress in volumetric investigations of nucleic acids.
• To emphasize the utility of volume and compressibility data for characterizing hydration properties.
• To provide molecular-level interpretations of hydration's role in nucleic acid stability and recognition.

Main Methods:

• Accumulation of a substantial database on volumetric properties of DNA, RNA, and model compounds.
• Design of volumetric measurements to characterize conformation-dependent hydration properties.
• Analysis of volumetric data as a function of solution conditions (temperature, pressure, ionic strength, pH, cosolvent concentration).

Main Results:

• Volumetric studies provide insights into intra- and intermolecular interactions stabilizing nucleic acid structures.
• Data characterize hydration properties of nucleic acids and their constituents.
• Insights gained into helix-to-coil and helix-to-helix transitions, and drug-DNA interactions.

Conclusions:

• Volume and compressibility data are essential for understanding nucleic acid hydration.
• Volumetric data offer molecular-level insights into hydration's role in nucleic acid stability and recognition.
• This approach enhances understanding of nucleic acid behavior in various solution conditions.