Dynamic phase transition in the conversion of B-DNA to Z-DNA

Details Dynamic phase transition in the conversion of B-DNA to Z-DNA Dynamic phase transition in the conversion of B-DNA to Z-DNA

2010-10-08

arxiv.org/abs/1010.1723v2

EPL, 92 (2010) 58004

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 4 figures. New version with correction of typos, new references, minor modifications in Fig 2, 3. To appear in EPL

Scientific paper

10.1209/0295-5075/92/58004

The long time dynamics of the conformational transition from B-DNA to Z-DNA is shown to undergo a dynamic phase transition. We obtained the dynamic phase diagram for the stability of the front separating B and Z. The instability in this front results in two split fronts moving with different velocities. Hence, depending on the system parameters a denatured state may develop dynamically eventhough it is thermodynamically forbidden. This resolves the current controversies on the transition mechanism of the B-DNA to Z-DNA.

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