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The effect of ionic conditions on DNA helical repeat, effective diameter and free energy of supercoiling.

We determined the free energy of DNA supercoiling as a function of the concentration of magnesium and sodium chloride in solution by measuring the variance of the equilibrium distribution of DNA linking number,<(DeltaLk)2>. We found that the free energy of supercoiling changed >1.5-fold ove...

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Autores principales: Rybenkov, V V, Vologodskii, A V, Cozzarelli, N R
Formato: Artigo
Lenguaje:Inglês
Publicado: 1997
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Acceso en línea:https://ncbi.nlm.nih.gov/pmc/articles/PMC146597/
https://ncbi.nlm.nih.gov/pubmed/9060437
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