Low-temperature heat capacity of DNA in various conformation states

Experimental results are presented on temperature--dependent DNA heat capacity in three different states: a) intact--native DNA in the conformation of double helix, b) disordered conformation of polynucleotide chains in the state of statistical coils, c) completely "degenerated" polynucleo...

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Bibliographic Details
Published in:	Biofizika Vol. 33; no. 2; p. 233
Main Authors:	Andronikashvili, E L, Mrevlishvili, G M, Dzhaparidze, G Sh, Sakhadze, V M, Tatishvili, D A
Format:	Journal Article
Language:	Russian
Published:	Russia (Federation) 01-03-1988
Subjects:	Calorimetry DNA Models, Theoretical Nucleic Acid Conformation Temperature Thermodynamics
Online Access:	Get more information
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Summary:	Experimental results are presented on temperature--dependent DNA heat capacity in three different states: a) intact--native DNA in the conformation of double helix, b) disordered conformation of polynucleotide chains in the state of statistical coils, c) completely "degenerated" polynucleotide chains--mechanical mixture of nucleotides. Data on heat capacity (4-400 K) at different water content in the specimens allow a definition of relative changes in the pattern of the entropy temperature dependence for these conformational states with the account for the structural effect of water.
ISSN:	0006-3029