Issue
EPL
Volume 79, Number 1, July 2007
Article Number 18005
Number of page(s) 5
Section Interdisciplinary Physics and Related Areas of Science and Technology
DOI http://dx.doi.org/10.1209/0295-5075/79/18005
Published online 15 June 2007
EPL, 79 (2007) 18005
DOI: 10.1209/0295-5075/79/18005

Tautomeric mutation: A quantum spin modelling

Ranjan Chaudhury

S.N. Bose National Centre For Basic Sciences - Block-JD, Sector-3, Salt Lake, Calcutta-700098, India

ranjan@bose.res.in
ranjan_021258@yahoo.com

received 13 November 2006; accepted in final form 24 May 2007; published July 2007
published online 15 June 2007

Abstract
A quantum spin model representing tautomeric mutation is proposed for any DNA molecule. Based on this model, the quantum-mechanical calculations for mutational rate and complementarity restoring repair rate in the replication processes are carried out. A possible application to a real biological system is discussed.

PACS
87.10.+e - Biological and medical physics: General theory and mathematical aspects.
75.10.Pq - Spin chain models.
87.14.Gg - DNA, RNA.

© Europhysics Letters Association 2007