Literature DB >> 17930265

Time scale of entropic segregation of flexible polymers in confinement: implications for chromosome segregation in filamentous bacteria.

Axel Arnold1, Suckjoon Jun.   

Abstract

We report molecular dynamics simulations of the segregation of two overlapping chains in cylindrical confinement. We find that the entropic repulsion between chains can be sufficiently strong to cause segregation on a time scale that is short compared to the one for diffusion. This result implies that entropic driving forces are sufficiently strong to cause rapid bacterial chromosome segregation.

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Year:  2007        PMID： 17930265     DOI： 10.1103/PhysRevE.76.031901

Source DB:  PubMed          Journal:  Phys Rev E Stat Nonlin Soft Matter Phys        ISSN： 1539-3755


  16 in total

1.  Independent segregation of the two arms of the Escherichia coli ori region requires neither RNA synthesis nor MreB dynamics.

Authors:  Xindan Wang; David J Sherratt
Journal:  J Bacteriol       Date:  2010-10-01       Impact factor: 3.490

2.  A model for segregation of chromatin after replication: segregation of identical flexible chains in solution.

Authors:  Ron Dockhorn; Jens-Uwe Sommer
Journal:  Biophys J       Date:  2011-06-08       Impact factor: 4.033

3.  Simulating the entropic collapse of coarse-grained chromosomes.

Authors:  Tyler N Shendruk; Martin Bertrand; Hendrick W de Haan; James L Harden; Gary W Slater
Journal:  Biophys J       Date:  2015-02-17       Impact factor: 4.033

4.  Electrostatic/entropic macromolecule manipulation in nanochannel. Swapping of macromolecule locations.

Authors:  Waldemar Nowicki
Journal:  J Mol Model       Date:  2019-08-24       Impact factor: 1.810

5.  Arm retraction and escape transition in semi-flexible star polymer under cylindrical confinement.

Authors:  Dušan Račko; Peter Cifra
Journal:  J Mol Model       Date:  2015-07-04       Impact factor: 1.810

6.  Caulobacter requires a dedicated mechanism to initiate chromosome segregation.

Authors:  Esteban Toro; Sun-Hae Hong; Harley H McAdams; Lucy Shapiro
Journal:  Proc Natl Acad Sci U S A       Date:  2008-09-29       Impact factor: 11.205

7.  Entropic unfolding of DNA molecules in nanofluidic channels.

Authors:  Stephen L Levy; John T Mannion; Ji Cheng; Christian H Reccius; Harold G Craighead
Journal:  Nano Lett       Date:  2008-10-10       Impact factor: 11.189

8.  Odijk excluded volume interactions during the unfolding of DNA confined in a nanochannel.

Authors:  Jeffrey G Reifenberger; Han Cao; Kevin D Dorfman
Journal:  Macromolecules       Date:  2018-01-24       Impact factor: 5.985

9.  Machine learning classification of trajectories from molecular dynamics simulations of chromosome segregation.

Authors:  David Geisel; Peter Lenz
Journal:  PLoS One       Date:  2022-01-21       Impact factor: 3.240

10.  Non-specific interactions are sufficient to explain the position of heterochromatic chromocenters and nucleoli in interphase nuclei.

Authors:  S de Nooijer; J Wellink; B Mulder; T Bisseling
Journal:  Nucleic Acids Res       Date:  2009-04-09       Impact factor: 16.971
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