Ion Competition in Condensed DNA Arrays in the Attractive Regime

Physical origin of DNA condensation by multivalent cations remains unsettled. Here, we report quantitative studies of how one DNA-condensing ion (Cobalt(3+) Hexammine, or Co(3+)Hex) and one nonDNA-condensing ion (Mg(2+)) compete within the interstitial space in spontaneously condensed DNA arrays. As...

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Main Authors: Qiu, Xiangyun, Giannini, John, Howell, Steven C., Xia, Qi, Ke, Fuyou, Andresen, Kurt
Format: Artigo
Jezik:Inglês
Izdano: The Biophysical Society 2013
Teme:
Proteins and Nucleic Acids
Online dostop:https://ncbi.nlm.nih.gov/pmc/articles/PMC3752107/
https://ncbi.nlm.nih.gov/pubmed/23972850
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.bpj.2013.07.004
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