DNA condensation and redissolution: Interaction between overcharged DNA molecules

  title={DNA condensation and redissolution: Interaction between overcharged DNA molecules},
  author={E.Allahyarov and G.Gompper and H.Lowen},
The effective DNA–DNA interaction force is calculated by computer simulations with explicit tetravalent counterions and monovalent salt. For overcharged DNA molecules, the interaction force shows a double-minimum structure. The positions and depths of these minima are regulated by the counterion density in the bulk. Using two-dimensional lattice sums and free energy perturbation theories, the coexisting phases for DNA bundles are calculated. A DNA condensation and redissolution transition and a… CONTINUE READING
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