Active diffusion of model chromosomal loci driven by athermal noise.
Active diffusion, i.e., fluctuating dynamics driven by athermal noise, is found in various out-of-equilibrium systems. Here we discuss the nature of the active diffusion of tagged monomers in a flexible polymer. A scaling argument based on the notion of tension propagation clarifies how the polymeric effect is reflected in the anomalous diffusion exponent, which may be of relevance to the dynamics of chromosomal loci in living cells.
Department of Physics, Kyushu University, Fukuoka 819-0395, Japan. sakaue@phys.kyushu-u.ac.jp.
Takahiro
T
Sakaue
Fukui Institute for Fundamental Chemistry, Kyoto 606-8103, Japan.
Takuya
T
Saito
D002875:Chromosomes / Q000235:genetics*; D004058:Diffusion; D008956:Models, Chemical; D011108:Polymers
D011108:Polymers