title: Lattice model for parallel and orthogonal beta sheets using hydrogenlike bonding.
abstract: We present results for a lattice model of polymers where the type of beta sheet formation can be controlled by different types of hydrogen bonds depending on the relative orientation of close segments of the polymer. Tuning these different interaction strengths leads to low-temperature structures with different types of orientational order. We perform simulations of this model and so present the phase diagram, ascertaining the nature of the phases and the order of the transitions between these phases.
authors.affiliation: Department of Mathematics and Statistics, The University of Melbourne, 3010, Australia. j.krawczyk@ms.unimelb.edu.au
authors.forename: J
authors.initials: J
authors.lastname: Krawczyk
authors.forename: A L
authors.initials: AL
authors.lastname: Owczarek
authors.forename: T
authors.initials: T
authors.lastname: Prellberg
authors.forename: A
authors.initials: A
authors.lastname: Rechnitzer
mesh_terms: D003198:Computer Simulation; D006859:Hydrogen / Q000737:chemistry*; D006860:Hydrogen Bonding; D008956:Models, Chemical; D008958:Models, Molecular; D044367:Phase Transition; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry* / Q000648:ultrastructure*
chemical_list: D011506:Proteins; D006859:Hydrogen