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Life Sciences Commons

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Biochemistry, Biophysics, and Structural Biology

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University of Nebraska - Lincoln

2008

Information processing

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Full-Text Articles in Life Sciences

Emergent Decision-Making In Biological Signal Transduction Networks, Tomáš Helikar, John Konvalina, Jack Heidel, Jim A. Rogers Feb 2008

Emergent Decision-Making In Biological Signal Transduction Networks, Tomáš Helikar, John Konvalina, Jack Heidel, Jim A. Rogers

Department of Biochemistry: Faculty Publications

The complexity of biochemical intracellular signal transduction networks has led to speculation that the high degree of interconnectivity that exists in these networks transforms them into an information processing network. To test this hypothesis directly, a large scale model was created with the logical mechanism of each node described completely to allow simulation and dynamical analysis. Exposing the network to tens of thousands of random combinations of inputs and analyzing the combined dynamics of multiple outputs revealed a robust system capable of clustering widely varying input combinations into equivalence classes of biologically relevant cellular responses. This capability was nontrivial in …