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Propagation of Twist Solitons in Fully Inhomogeneous DNA Chains

2011; Springer Nature; Volume: 17; Issue: 4 Linguagem: Inglês

10.1142/s1402925110001069

1776-0852

Mariano Cadoni, R. De Leo, Sergio Demelio, Giuseppe Gaeta,

Plant Virus Research Studies

We report on numerical investigations concerning the propagation of solitons in a real DNA chain (the Human Adenovirus 2) using a realistic model of DNA torsional dynamics; this takes fully into account the inhomogeneities in the real chain. We find that twist solitons propagate for considerable distances (2-10 times their diameters) before stopping due to phonon emission. Our results show that twist solitons may exist in real DNA chains; and on a more general level that solitonic propagation can take place in highly inhomogeneous media.