Reptatsiia DNK iz bakteriofaga.

Translated title of the contribution: Bacteriophage DNA reptation

I. S. Gabashvili, A. I. Grosberg

    Research output: Contribution to journalArticle

    Abstract

    The kinetics of reptation process of dsDNA leaving the phage head is analysed theoretically. It is assumed that the process is caused by DNA free energy decrease when it is leaving the head (DNA has to be in a globular state) for its surroundings where it is transformed into a coil state. For the analysis we have used the results of previous paper on equilibrium theory of DNA intraphage globule. Three possible cases for the ejection process friction are considered: friction in the tail-part channel, that of DNA segments with each other in the whole globule volume (it is essential for the collective way of the globule decondensation with simultaneous movement of all the loops--the first type way), the globule friction with internal capsid surface (it is most essential for the decondensation by the way of the globule rotation as a whole "spool"--the second type way). The first way would correspond to the greatest ejection time. The known experimental data on distinguishing ejection kinetics for phages with short and long tail-parts allow us to formulate arguments in favor of realization of the second way in nature.

    Original languageUndefined
    Pages (from-to)788-793
    Number of pages6
    JournalBiofizika
    Volume36
    Issue number5
    StatePublished - Sep 1991

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    Bacteriophages
    Friction
    DNA
    Capsid
    Head

    ASJC Scopus subject areas

    • Biophysics

    Cite this

    Gabashvili, I. S., & Grosberg, A. I. (1991). Reptatsiia DNK iz bakteriofaga. Biofizika, 36(5), 788-793.

    Reptatsiia DNK iz bakteriofaga. / Gabashvili, I. S.; Grosberg, A. I.

    In: Biofizika, Vol. 36, No. 5, 09.1991, p. 788-793.

    Research output: Contribution to journalArticle

    Gabashvili, IS & Grosberg, AI 1991, 'Reptatsiia DNK iz bakteriofaga.', Biofizika, vol. 36, no. 5, pp. 788-793.
    Gabashvili IS, Grosberg AI. Reptatsiia DNK iz bakteriofaga. Biofizika. 1991 Sep;36(5):788-793.
    Gabashvili, I. S. ; Grosberg, A. I. / Reptatsiia DNK iz bakteriofaga. In: Biofizika. 1991 ; Vol. 36, No. 5. pp. 788-793.
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