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. 2012 Mar 24;40(6):2807–2821. doi: 10.1093/nar/gks214

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© The Author(s) 2012. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 5. — Dependence of midpoint (EC₅₀) of DNA condensation by cationic ligands determined from the precipitation assay data on KCl concentration. (A) Summary showing change of the EC₅₀ values in dependence on the KCl concentration and charge of the ligand. (B) Results for the substituted ε-oligolysines. Data obtained for the unsubstituted εK10 and εK31 are also displayed for comparison. In (A) and (B), EC₅₀ is expressed in mol/L of ligand; DNA concentration is constant and equal to 100 µM.