Bursting noise in gene expression dynamics: linking microscopic and mesoscopic models
Open Access
- 1 January 2016
- journal article
- research article
- Published by The Royal Society in Journal of The Royal Society Interface
- Vol. 13 (114), 20150772
- https://doi.org/10.1098/rsif.2015.0772
Abstract
The dynamics of short-lived mRNA results in bursts of protein production in gene regulatory networks. We investigate the propagation of bursting noise between different levels of mathematical modelling and demonstrate that conventional approaches based on diffusion approximations can fail to capture bursting noise. An alternative coarse-grained model, the so-called piecewise deterministic Markov process (PDMP), is seen to outperform the diffusion approximation in biologically relevant parameter regimes. We provide a systematic embedding of the PDMP model into the landscape of existing approaches, and we present analytical methods to calculate its stationary distribution and switching frequencies.Keywords
Funding Information
- Engineering and Physical Sciences Research Council (EP/K037145/1)
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