Constructive effects of fluctuations in genetic and biochemical regulatory systems.
Biochemical and genetic regulatory systems that involve low concentrations of molecules are inherently noisy. This intrinsic stochasticity has received considerable interest recently, leading to new insights about the sources and consequences of noise in complex systems of genetic regulation. However, most prior work was devoted to the reduction of fluctuation and the robustness of cellular function with respect to intrinsic noise. Here, we focus on several scenarios in which the inherent molecular fluctuations are not merely a nuisance, but act constructively and bring about qualitative changes in the dynamics of the system. It will be demonstrated that in many typical situations biochemical and genetic regulatory systems may utilize intrinsic noise to their advantage.
Steuer
Ralf
R
Institut für Physik der Universität Potsdam, Arbeitsgruppe Nichtlineare Dynamik, Am Neuen Palais 10, Haus 19, 14469 Potsdam, Germany. steuer@agnld.uni-potsdam.de
Zhou
Changsong
C
Kurths
Jürgen
J
D000465:Algorithms; D000818:Animals; D002940:Circadian Rhythm; D006801:Humans; D008954:Models, Biological; D008957:Models, Genetic; D015233:Models, Statistical; D009991:Oscillometry; D012984:Software; D013269:Stochastic Processes; D013997:Time Factors