2007/04/27 by Charles Limouse, C. Limouse, C. Danilowicz +12
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #DNA and Nucleic Acid Chemistry #FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft) #cond-mat.soft
paper · pdf · doi:10.48550/arxiv.0704.3753
openalex publication_date 2007/04/27 · arxiv created 2008/06/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It had been proposed that overstretching double stranded DNA from the 5-5 ends will produce a new fiber form of dsDNA that is narrower than the S form that has been suggested to result when the dsDNA is overstretched from the 3-3 ends. We present the first comparison of the structures that result when dsDNA is overstretched from the 5-5, 3-3, and 3-5 ends and show that the stability of the overstretched form depends on the ends to which the force is applied. The stability also depends strongly on the ionic environment as well as the presence of reagents that bind to ssDNA.