MOTION OF SOLITONS IN DEOXYRIBONUCLEIC-ACID (DNA) DOUBLE HELICES WITHDISSIPATION

Under the first-order approximation, the general soliton solution of t he plane base rotator model is obtained using the direct perturbation method, when taking the dissipation interaction in the DNA double heli ces dynamics into consideration. The stability condition of system lea ds to a relation among the soliton velocity the coupling constants and the damping factor. It imposes limits to the maximum value of the sol iton velocity and energy. An estimation of the value of the dissipatio n factor is given using recently published experimental data. Some pra ctical problems such as the energy transmission and the semiconservati ve replication of B-DNA are discussed in detail.