Probing of nucleic acid compaction using low-frequency Raman spectroscopy

Compaction of nucleic acids, namely DNA and RNA, determines their functions and involvement in vital cell processes including transcription, replication, DNA repair and translation. However, experimental probing of the compaction of nucleic acids is not straightforward. In this study, we suggest an...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2024-06, Vol.26 (25), p.17467-17475
Main Authors: Sosorev, Andrey Yu, Parashchuk, Olga D, Chicherin, Ivan V, Trubitsyn, Artem A, Trukhanov, Vasiliy A, Baleva, Maria V, Piunova, Ulyana E, Kharlanov, Oleg G, Kamenski, Piotr, Paraschuk, Dmitry Yu
Format: Article
Language:English
Subjects:
Acids
Biomolecules
Deoxyribonucleic acid
DNA
Molecular biology
Nucleic acids
Raman spectroscopy
Spectrum analysis
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Summary:Compaction of nucleic acids, namely DNA and RNA, determines their functions and involvement in vital cell processes including transcription, replication, DNA repair and translation. However, experimental probing of the compaction of nucleic acids is not straightforward. In this study, we suggest an approach for this probing using low-frequency Raman spectroscopy. Specifically, we show theoretically, computationally and experimentally the quantifiable correlation between the low-frequency Raman intensity from nucleic acids, magnitude of thermal fluctuations of atomic positions, and the compaction state of biomolecules. Noteworthily, we highlight that the LF Raman intensity differs by an order of magnitude for different samples of DNA, and even for the same sample in the course of long-term storage. The feasibility of the approach is further shown by assessment of the DNA compaction in the nuclei of plant cells. We anticipate that the suggested approach will enlighten compaction of nucleic acids and their dynamics during the key processes of the cell life cycle and under various factors, facilitating advancement of molecular biology and medicine. In this study, we suggest an approach for probing the compaction of nucleic acids using low-frequency Raman spectroscopy.
ISSN:1463-9076
1463-9084
1463-9084
DOI:10.1039/d3cp05857c