RT info:eu-repo/semantics/article T1 Thermal denaturation of A-DNA A1 Valle Orero, J. A1 Wildes, Andew R. A1 Theodorakopoulos, Nikos A1 Cuesta López, Santiago A1 Garden, J. L. . A1 Danilkin, S. . A1 Peyrard, Michel K1 Física K1 Physics AB The DNA molecule can take various conformational forms. Investigationsfocus mainly on the so-called ‘B-form’, schematically drawn in the famouspaper by Watson and Crick [1]. This is the usual form of DNA in a biologicalenvironment and is the only form that is stable in an aqueous environment.Other forms, however, can teach us much about DNA. They have the samenucleotide base pairs for ‘building blocks’ as B-DNA, but with differentrelative positions, and studying these forms gives insight into the interactionsbetween elements under conditions far from equilibrium in the B-form.Studying the thermal denaturation is particularly interesting because it providesa direct probe of those interactions which control the growth of thefluctuations when the ‘melting’ temperature is approached. Here we reportsuch a study on the ‘A-form’ using calorimetry and neutron scattering. Weshow that it can be carried further than a similar study on B-DNA, requiringthe improvement of thermodynamic models for DNA. PB IOP Publising SN 1367-2630 YR 2014 FD 2014-11 LK http://hdl.handle.net/10259/4768 UL http://hdl.handle.net/10259/4768 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 23-nov-2024