Effect of twisting on the behavior of a double-stranded polymer chain: A Monte Carlo simulation

Effect of twisting on the behavior of a double-stranded polymer chain: A Monte Carlo simulation

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...

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Veröffentlicht in:The Journal of chemical physics 1999-11, Vol.111 (20), p.9424-9433
Hauptverfasser: Velichko, Yu. S., Yoshikawa, K., Khokhlov, A. R.
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creator Velichko, Yu. S.
Yoshikawa, K.
Khokhlov, A. R.
description 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.
doi_str_mv 10.1063/1.480035
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source American Institute of Physics (AIP) Journals; AIP_美国物理联合会期刊回溯（NSTL购买）
title Effect of twisting on the behavior of a double-stranded polymer chain: A Monte Carlo simulation
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