Addendum to "Monomer motion in single- and double-stranded DNA coils" [arXiv: cond-mat/0509399]

TL;DR

This addendum revises previous DNA monomer dynamics analysis with new experimental data, showing improved agreement with the Rouse-Zimm theory while confirming earlier conclusions about DNA behavior.

Contribution

It updates the previous analysis by incorporating corrected data, demonstrating enhanced model fit and reaffirming the original findings on DNA monomer motion.

Findings

Better fit of theory to new data

Confirmation of previous conclusions

Improved understanding of DNA dynamics

Abstract

In our work [J. Tothova et al., cond-mat/0509399] the first observation of the kinetics of individual polymer monomers using the fluorescence correlation technique [R. Shusterman et al., Phys. Rev. Lett. 92, 048303 (2004)] has been interpreted within the joint Rouse-Zimm theory. Optimizing the theory to the experimental data the phenomenological parameters for the statistical-mechanical description of the universal behavior of double- and single-stranded DNA and the dominant types of their dynamics have been determined. Recently, these data have been corrected [R. Shusterman et al., Phys. Rev. Lett. 98, 029901 (2007)]. In this Addendum the fits of the theory to the new data are presented. The main conclusions of our preceding work remain unchanged. Moreover, the new data allow a significantly better agreement with the theory than the previous ones.