title: [Calculation of the degree of superhelical DNA in model chromatin fibers].
abstract: Effect of the length of DNA internucleosome regions (L) on writhing number (Wr) was analysed. It has been shown that Wr(L) is a periodic function. In any period Wr decreases, if L increases. The process of chromatin activation is proposed. The value sigma is shown to be equal to -0.086 for certainly inactive and -0.107 for potentially active and active chromatin models.
authors: G P
authors: GP
authors: Kishchenko
mesh_terms: D002843:Chromatin / Q000737:chemistry*; D004278:DNA, Superhelical; D008962:Models, Theoretical; D009690:Nucleic Acid Conformation
chemical_list: D002843:Chromatin; D004278:DNA, Superhelical
vernacular_title: Vychislenie stepeni superspiral'nosti DNK v model'nykh khromatinovykh fibrillakh.