Solitary Wave Propagation in Deoxyribonucleic Acid Double Helices
ZHANG Ling-yun1, SUN Hong2
1Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
2Department of Modern Applied Physics, Center of Atomic and Molecular Sciences, Tsinghua University, Beijing 100084
Solitary Wave Propagation in Deoxyribonucleic Acid Double Helices
ZHANG Ling-yun1;SUN Hong2
1Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
2Department of Modern Applied Physics, Center of Atomic and Molecular Sciences, Tsinghua University, Beijing 100084
Abstract： A solitary wave propagation of deoxyribonucleic acid (DNA) double helices has been discussed. The stretch of the hydrogen bonds is considered as a nonlinear chain with cubic and quartic potential. The solitary wave solution can be obtained by using a homogeneous balance method. The characteristic parameters of solitary wave, such as the stretch amplitude and width are estimated. It is shown that the conformational transitions from B-DNA to A-DNA can occur in a certain condition.
1998, Vol. 15 
