Literature DB >> 22045410

Colored noise in the fluctuations of an extended DNA molecule detected by optical trapping.

Ignacio A Martínez1, Saurabh Raj, Dmitri Petrov.   

Abstract

We studied fluctuations of an optically trapped bead connected to a single DNA molecule anchored between the bead and a cover glass or between two optically trapped beads. Power spectral densities of the bead position for different extensions of the molecule were compared with the power spectral density of the position fluctuations of the same bead without the molecule attached. Experiments showed that the fluctuations of the DNA molecule extended up to 80% by a force of 3 pN include the colored noise contribution with spectral dependence 1/f (α) with α ~ 0.75.

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Year:  2011        PMID： 22045410     DOI： 10.1007/s00249-011-0763-7

Source DB:  PubMed          Journal:  Eur Biophys J        ISSN： 0175-7571            Impact factor:   1.733


  26 in total

1.  Femtonewton force spectroscopy of single extended DNA molecules.

Authors:  J C Meiners; S R Quake
Journal:  Phys Rev Lett       Date:  2000-05-22       Impact factor: 9.161

2.  An automated two-dimensional optical force clamp for single molecule studies.

Authors:  Matthew J Lang; Charles L Asbury; Joshua W Shaevitz; Steven M Block
Journal:  Biophys J       Date:  2002-07       Impact factor: 4.033

3.  Direct mechanical measurements of the elasticity of single DNA molecules by using magnetic beads.

Authors:  S B Smith; L Finzi; C Bustamante
Journal:  Science       Date:  1992-11-13       Impact factor: 47.728

4.  Evolution of long-range fractal correlations and 1/f noise in DNA base sequences.

Authors: 
Journal:  Phys Rev Lett       Date:  1992-06-22       Impact factor: 9.161

5.  Colored noise, folding rates and departure from Kramers' behavior.

Authors:  Bidhan Chandra Bag; Chin-Kun Hu; Mai Suan Li
Journal:  Phys Chem Chem Phys       Date:  2010-08-20       Impact factor: 3.676

6.  DNA translocation through graphene nanopores.

Authors:  Christopher A Merchant; Ken Healy; Meni Wanunu; Vishva Ray; Neil Peterman; John Bartel; Michael D Fischbein; Kimberly Venta; Zhengtang Luo; A T Charlie Johnson; Marija Drndić
Journal:  Nano Lett       Date:  2010-08-11       Impact factor: 11.189

7.  Direct observation of large temperature fluctuations during DNA thermal denaturation.

Authors:  K S Nagapriya; A K Raychaudhuri; Dipankar Chatterji
Journal:  Phys Rev Lett       Date:  2006-01-25       Impact factor: 9.161

8.  Single-molecule experiments in biological physics: methods and applications.

Authors:  F Ritort
Journal:  J Phys Condens Matter       Date:  2006-07-25       Impact factor: 2.333

9.  Probing the dynamic differential stiffness of dsDNA interacting with RecA in the enthalpic regime.

Authors:  Chia-Hui Lien; Ming-Tzo Wei; Te-Yu Tseng; Chien-Der Lee; Chung Wang; Ting-Fang Wang; H Daniel Ou-Yang; Arthur Chiou
Journal:  Opt Express       Date:  2009-10-26       Impact factor: 3.894

10.  Overstretching B-DNA: the elastic response of individual double-stranded and single-stranded DNA molecules.

Authors:  S B Smith; Y Cui; C Bustamante
Journal:  Science       Date:  1996-02-09       Impact factor: 47.728
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  1 in total

1.  Magnetic tweezers measurements of the nanomechanical stability of DNA against denaturation at various conditions of pH and ionic strength.

Authors:  Alessia Tempestini; Valeria Cassina; Doriano Brogioli; Roberto Ziano; Simona Erba; Roberto Giovannoni; Maria G Cerrito; Domenico Salerno; Francesco Mantegazza
Journal:  Nucleic Acids Res       Date:  2012-12-16       Impact factor: 16.971
  1 in total

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