title: Stretching an anisotropic DNA.
abstract: We present a perturbation theory to find the response of an anisotropic DNA to the external tension. It is shown that the anisotropy has a nonzero but small contribution to the force-extension curve of the DNA. Thus an anisotropic DNA behaves like an isotropic one with an effective bending constant equal to the harmonic average of its soft and hard bending constants.
authors: Department of Physics, Sharif University of Technology, P.O. Box 14588-89694, Tehran, Iran.
authors: B
authors: B
authors: Eslami-Mossallam
authors: M R
authors: MR
authors: Ejtehadi
mesh_terms: D016880:Anisotropy; D003198:Computer Simulation; D004247:DNA / Q000737:chemistry*; D004548:Elasticity; D008956:Models, Chemical; D013314:Stress, Mechanical
chemical_list: D004247:DNA