title: Proteinlike behavior of a spin system near the transition between a ferromagnet and a spin glass.
abstract: A simple spin system is studied as an analog for proteins. We investigate how the introduction of randomness and frustration into the system affects the designability and stability of ground-state configurations. We observe that the spin system exhibits proteinlike behavior in the vicinity of the transition between a ferromagnet and a spin glass. Our results illuminate some guiding principles in protein evolution.
authors.affiliation: Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan.
authors.forename: C Y
authors.initials: CY
authors.lastname: Lin
authors.forename: C K
authors.initials: CK
authors.lastname: Hu
authors.forename: U H
authors.initials: UH
authors.lastname: Hansmann
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D005290:Ferric Compounds / Q000737:chemistry*; D059346:Magnets; D017510:Protein Folding; D011506:Proteins / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D011506:Proteins; C001215:ferrite