Statistical mechanics of a nonlinear model for DNA denaturation

Statistical mechanics of a nonlinear model for DNA denaturation

We investigate the statistical mechanics of a simple lattice model for thedenaturation of the DNA double helix. The model consists of two chainsconnected by Morse potentials representing the H bonds. We determine thetemperature dependence of the interstrand separation and we show that amechanism inv...

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Veröffentlicht in:Phys. Rev. Lett.; (United States) 1989-06, Vol.62 (23), p.2755-2758
Hauptverfasser: PEYRARD, M, BISHOP, A. R
Format: Artikel
Sprache:eng
Schlagworte:
550700 > Microbiology
BASIC BIOLOGICAL SCIENCES
Biological and medical sciences
CHAINS
DNA
DYNAMICS
Fundamental and applied biological sciences. Psychology
HELICITY
MECHANICS
Molecular biophysics
NONLINEAR PROBLEMS
NUCLEIC ACIDS
ORGANIC COMPOUNDS
PARTICLE PROPERTIES 550400 > Genetics
STATISTICAL MECHANICS
Structure in molecular biology
TEMPERATURE DEPENDENCE
Tridimensional structure
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Beschreibung
Zusammenfassung:We investigate the statistical mechanics of a simple lattice model for thedenaturation of the DNA double helix. The model consists of two chainsconnected by Morse potentials representing the H bonds. We determine thetemperature dependence of the interstrand separation and we show that amechanism involving an energy localization analogous to self-focusing mayinitiate the denaturation.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.62.2755