The main goal of systems biology is to understand the dynamical properties of biological systems by investigating the interactions among the components of a biological system. In this work, we focus on the robustness property, a behaviour observed in several biological systems that allows them to preserve their functions despite external and internal perturbations. We first propose a new formal definition of robustness using the formalism of continuous Petri nets. In particular, we focus on robustness against perturbations to the initial concentrations of species. Then, we demonstrate the validity of our definition by applying it to the models of three different robust biochemical networks.
Formalizing a notion of concentration robustness for biochemical networks
Nasti, Lucia
Co-primo
;Gori, Roberta
Co-primo
;Milazzo, Paolo
Co-primo
2018-01-01
Abstract
The main goal of systems biology is to understand the dynamical properties of biological systems by investigating the interactions among the components of a biological system. In this work, we focus on the robustness property, a behaviour observed in several biological systems that allows them to preserve their functions despite external and internal perturbations. We first propose a new formal definition of robustness using the formalism of continuous Petri nets. In particular, we focus on robustness against perturbations to the initial concentrations of species. Then, we demonstrate the validity of our definition by applying it to the models of three different robust biochemical networks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.