Comment on 'Flexibility of short DNA helices with finite-length effect: From base pairs to tens of base pairs' [J. Chem. Phys. 142, 125103 (2015)]
| Autor: | Enrico Skoruppa, Jan A. Stevens, Aderik Voorspoels, Enrico Carlon, Merijn Vangilbergen, Midas Segers |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Persistence length
Physics Flexibility (anatomy) Base pair General Physics and Astronomy Length effect DNA Protein Structure Secondary chemistry.chemical_compound medicine.anatomical_structure chemistry Chain (algebraic topology) medicine Empirical formula Nucleic Acid Conformation Statistical physics Physical and Theoretical Chemistry Base Pairing |
| Zdroj: | The Journal of chemical physics. 155(2) |
| ISSN: | 1089-7690 |
| Popis: | While analyzing the persistence length of DNA atomistic simulations Wu et al. [J. Chem. Phys. 142, 125103 (2015)] introduced an empirical formula to account for the observed length-dependence. In particular they found that the persistence length increases with the distance. Here, we derive the formula by Wu et al. using a non-local twistable wormlike chain which introduces couplings between distal sites. Finally, we show that the same formula can account for the length-scale dependence of the torsional persistence length and is, in fact, applicable to any kind of polymer model with non-local couplings. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|