| Language: | English |
|---|---|
| Type: | Article |
| Authors: | Yuri S. Velichko, Kenichi Yoshikawa and Alexei R. Khokhlov |
| Journal: | Journal of Chemical Physics |
| ISSN: | 0021-9606 |
| Volume: | 111 |
| Number: | 20 |
| Month: | 11 |
| Year: | 1999 |
| Actual year: | 1999 |
| Pages: | 9424-9433 |
| doi: | 10.1063/1.480035 |
| Abstract: | DNA and some proteins have a multistranded chain structure and exhibit characteristic tertiary structures due to twisting or anisotropic rigidity. We studied the effect of chain twisting on the behavior of a circular double-stranded polymer chain using a Monte Carlo simulation with bond fluctuation model. We found that there are two regimes for the chain conformation, depending on its twisting. In the first regime, with weak twisting, a circular chain behaves like a coiled linear chain. In the second regime, the chain shows scaling dependencies characterized by supercoiled structures. (C) 1999 American Institute of Physics. |
Yuri S. Velichko, Kenichi Yoshikawa and Alexei R. Khokhlov, Journal of Chemical Physics, 111, 9424-9433 (1999)