The bend stiffness of S-DNA

C. Storm, P. Nelson

    Research output: Contribution to journalArticleAcademicpeer-review

    16 Citations (Scopus)
    2 Downloads (Pure)

    Abstract

    We formulate and solve a two-state model for the elasticity of nicked, double-stranded DNA that borrows features from both the Worm Like Chain and the Bragg-Zimm model. Our model is computationally simple, and gives an excellent fit to recent experimental data through the entire overstretching transition. The fit gives the first value for the bending stiffness of the overstretched state as about 12 nmkBT, a value quite different from either B-form or single-stranded DNA.
    Original languageEnglish
    Pages (from-to)760-766
    Number of pages8
    JournalEurophysics Letters
    Volume62
    Issue number5
    DOIs
    Publication statusPublished - 2003

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