Loop dynamics in DNA denaturation

被引：54

作者：

Bar, A. ^{[1
]}

Kafri, Y.

Mukamel, D.

机构：

[1] Weizmann Inst Sci, Inst Phys Complex Syst, IL-76100 Rehovot, Israel

[2] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.98.038103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of a loop in DNA molecules at the denaturation transition is studied by scaling arguments and numerical simulations. The autocorrelation function of the state of complementary bases (either closed or open) is calculated. The long-time decay of the autocorrelation function is expressed in terms of the loop exponent c both for homopolymers and heteropolymers. This suggests an experimental method for measuring the exponent c using florescence correlation spectroscopy.

引用

页数：4

共 19 条

[1] Bubble dynamics in double-stranded DNA [J].

Altan-Bonnet, G ;

Libchaber, A ;

Krichevsky, O .

PHYSICAL REVIEW LETTERS, 2003, 90 (13)

[2] Bubble relaxation dynamics in double-stranded DNA [J].

Bicout, DJ ;

Kats, E .

PHYSICAL REVIEW E, 2004, 70 (01) :4

[3] Roles of stiffness and excluded volume in DNA denaturation [J].

Carlon, E ;

Orlandini, E ;

Stella, AL .

PHYSICAL REVIEW LETTERS, 2002, 88 (19) :4-198101

[4] Simple model for the DNA denaturation transition [J].

Causo, MS ;

Coluzzi, B ;

Grassberger, P .

PHYSICAL REVIEW E, 2000, 62 (03) :3958-3973

[5] EFFECT OF EXCLUDED VOLUME ON PHASE TRANSITIONS IN BIOPOLYMERS [J].

FISHER, ME .

JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (05) :1469-&

[6]

Garel T, 2005, EUR PHYS J B, V46, P117, DOI 10.1140/epjb/e2005-00241-l

[7] Smoothing of depinning transitions for directed polymers with quenched disorder [J].

Giacomin, G ;

Toninelli, FL .

PHYSICAL REVIEW LETTERS, 2006, 96 (07)

[8]

GOTOH O, 1983, ADV BIOPHYS, V16, P1

[9] Bubble dynamics in DNA [J].

Hanke, A ;

Metzler, R .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2003, 36 (36) :L473-L480

[10] Why is the DNA denaturation transition first order? [J].

Kafri, Y ;

Mukamel, D ;

Peliti, L .

PHYSICAL REVIEW LETTERS, 2000, 85 (23) :4988-4991

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