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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2013, Volume 98, Issue 11, Pages 830–836
DOI: https://doi.org/10.7868/S0370274X13230185 (Mi jetpl3600) 		 
This article is cited in 5 scientific papers (total in 5 papers)

BIOPHYSICS

Low-frequency dynamics of DNA in Brillouin light scattering spectra

S. G. Lushnikovab, A. V. Dmitrievab, A. I. Fedoseeva, G. A. Zakharovac, A. V. Zhuravlevc, A. V. Medvedevaac, B. F. Schegolevc, E. V. Savvateeva-Popovaac

a Saint Petersburg State University
b Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg
c Pavlov Institute of Physiology Russian Academy of Sciences
Full-text PDF (966 kB) Citations (5)
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DOI: https://doi.org/10.7868/S0370274X13230185
Abstract: Brillouin light scattering studies of deoxyribonucleic acid (DNA) in the temperature interval $297$–$375$ K are presented. DNA fragment ($119$ bp) from the 1st intron of $D$ melanogaster limk1 gene with AT-rich insertion ($28$ bp, mutant $agn^{ts3}$) was used as an experimental sample. The temperature dependence of the hypersound velocity was found to exhibit anomalies in the vicinity of $347$ and $335$ К. Computer modeling of possible conformational states which might be attained by the DNA fragment under study has shown the existence of local structures that evolve with varying temperature. Combined analysis of experimental data and results of the modeling reveals a close relation between the anomalous behavior of Brillouin light scattering spectra and conformational DNA dynamics. The results are discussed in the framework of modern models of conformational DNA transformations.
Received: 23.10.2013
English version:
Journal of Experimental and Theoretical Physics Letters, 2013, Volume 98, Issue 11, Pages 735–741
DOI: https://doi.org/10.1134/S0021364013240168
Bibliographic databases:
Document Type: Article
Language: English
Citation: S. G. Lushnikov, A. V. Dmitriev, A. I. Fedoseev, G. A. Zakharov, A. V. Zhuravlev, A. V. Medvedeva, B. F. Schegolev, E. V. Savvateeva-Popova, “Low-frequency dynamics of DNA in Brillouin light scattering spectra”, Pis'ma v Zh. Èksper. Teoret. Fiz., 98:11 (2013), 830–836; JETP Letters, 98:11 (2013), 735–741
Citation in format AMSBIB
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