Force-Induced Visualization of Nucleic Acid Functions with Single-Nucleotide Resolution.

Area of Science:

• Molecular biology
• Biophysics
• Biochemistry

Background:

• Nucleic acids are crucial for biological functions, making their detection and analysis vital.
• Current methods for nucleic acid analysis are often complex, costly, and lack single-nucleotide resolution.
• There is a need for advanced techniques to precisely determine nucleic acid presence, movement, and binding interactions.

Purpose of the Study:

• To introduce a novel force-induced visualization method for determining nucleic acid functional positions.
• To achieve single-nucleotide resolution in nucleic acid analysis using mechanical force.
• To overcome limitations of existing techniques, such as analyte concentration variations and buffer condition differences.

Main Methods:

• Developed a force-induced visualization method utilizing adjustable mechanical force.
• Applied the method to probe messenger RNA (mRNA) movement during ribosomal translocation.
• Used the method to reveal interacting sites and strengths of DNA-binding drugs via force amplitude analysis.

Main Results:

• Demonstrated single-nucleotide resolution in mapping nucleic acid functional positions.
• Successfully visualized mRNA movement during ribosomal translocation.
• Quantified drug-nucleic acid interactions, including binding sites and strengths.

Conclusions:

• The force-induced visualization method provides a flexible, simple, and potentially multiplexed approach for nucleic acid analysis.
• This technique overcomes common challenges in biological sample analysis.
• It holds significant promise for diverse biomedical applications requiring precise nucleic acid detection.