Distributions of bubble lifetimes and bubble lengths in DNA

M Hillebrand, G Kalosakas, C Skokos, AR Bishop - Physical Review E, 2020 - APS
We investigate the distribution of bubble lifetimes and bubble lengths in DNA at
physiological temperature, by performing extensive molecular dynamics simulations with the …

Heterogeneity and chaos in the Peyrard-Bishop-Dauxois DNA model

M Hillebrand, G Kalosakas, A Schwellnus, C Skokos - Physical Review E, 2019 - APS
We discuss the effect of heterogeneity on the chaotic properties of the Peyrard-Bishop-
Dauxois nonlinear model of DNA. Results are presented for the maximum Lyapunov …

Effect of salt concentration on the stability of heterogeneous DNA

A Singh, N Singh - Physica A: Statistical Mechanics and its Applications, 2015 - Elsevier
We study the role of cations on the stability of double stranded DNA (dsDNA) molecules. It is
known that the two strands of double stranded DNA (dsDNA) have negative charge due to …

Bubble lifetimes in DNA gene promoters and their mutations affecting transcription

M Hillebrand, G Kalosakas, AR Bishop… - The Journal of Chemical …, 2021 - pubs.aip.org
Relative lifetimes of inherent double stranded DNA openings with lengths up to ten base
pairs are presented for different gene promoters and corresponding mutants that either …

Differential stability of DNA based on salt concentration

A Maity, A Singh, N Singh - European Biophysics Journal, 2017 - Springer
Intracellular positive ions neutralize negative charges on the phosphates of a DNA strand,
conferring greater strength on the hydrogen bonds that connect complementary strands into …

Mesoscopic model parametrization of hydrogen bonds and stacking interactions of RNA from melting temperatures

G Weber - Nucleic Acids Research, 2013 - academic.oup.com
Abstract Information about molecular interactions in DNA can be obtained from experimental
melting temperature data by using mesoscopic statistical physics models. Here, we extend …

Reduction of interstrand charge repulsion of DNA duplexes by salts and by neutral phosphotriesters–contrary effects for harnessing duplex formation

TC Kuo, MW Wu, WC Lin, D Matulis, YS Yang… - Journal of the Taiwan …, 2020 - Elsevier
To exploit the formation of DNA duplexes, the charge repulsion between complementary
DNA strands can be reduced by adding salts or by replacing the negatively charged natural …

Mesoscopic model for free-energy-landscape analysis of DNA sequences

R Tapia-Rojo, D Prada-Gracia, JJ Mazo, F Falo - Physical Review E—Statistical …, 2012 - APS
A mesoscopic model which allows us to identify and quantify the strength of binding sites in
DNA sequences is proposed. The model is based on the Peyrard-Bishop-Dauxois model for …

Melting of DNA in confined geometries

A Maity, N Singh - European Biophysics Journal, 2020 - Springer
The stability of DNA molecules during viral or biotechnological encapsulation is a topic of
active current research. We studied the thermal stability of double-stranded DNA molecules …

Mesoscopic model and free energy landscape for protein-DNA binding sites: analysis of cyanobacterial promoters

R Tapia-Rojo, JJ Mazo, JA Hernandez… - PLoS Computational …, 2014 - journals.plos.org
The identification of protein binding sites in promoter sequences is a key problem to
understand and control regulation in biochemistry and biotechnological processes. We use …