Amplified biochemical oscillations in cellular systems

Details Amplified biochemical oscillations in cellular systems Amplified biochemical oscillations in cellular systems

2006-04-02

arxiv.org/abs/q-bio/0604001v1

Biology

Quantitative Biology

Cell Behavior

35 pages, 6 figures

Scientific paper

10.1007/s10955-006-9221-9

We describe a mechanism for pronounced biochemical oscillations, relevant to microscopic systems, such as the intracellular environment. This mechanism operates for reaction schemes which, when modeled using deterministic rate equations, fail to exhibit oscillations for any values of rate constants. The mechanism relies on amplification of the underlying stochasticity of reaction kinetics within a narrow window of frequencies. This amplification allows fluctuations to beat the central limit theorem, having a dominant effect even though the number of molecules in the system is relatively large. The mechanism is quantitatively studied within simple models of self-regulatory gene expression, and glycolytic oscillations.

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