Abstract
Recent progresses in the protein regulatory network of budding yeastSaccharomyces cerevisiae have provided a global picture of its proteinnetwork for further dynamical research. We simplify and modularize theprotein regulatory networks in yeast nucleus, and study the dynamicalproperties of the core 37-node network by a Boolean network model,especially the evolution steps and final fixed points. Our simulationresults show that the number of fixed points N(k) for a givensize of the attraction basin k obeys a power-law distributionN(k)∝k−2.024. The yeast network is more similar to a scale-free network than a random network in the above dynamical properties.
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