Article
Interlinked fast and slow positive feedback loops drive reliable cell decisions.
Science (New York, N.Y.) - 21 Oct 2005
Brandman Onn, Ferrell James E, Li Rong, Meyer Tobias
Abstract excerpt
Positive feedback is a ubiquitous signal transduction motif that allows systems to convert graded inputs into decisive, all-or-none outputs. Here we investigate why the positive feedback switches that regulate polarization of budding yeast, calcium signaling, Xenopus oocyte maturation, and various other processes use multiple interlinked loops rather than single positive feedback loops. Mathematical simulations...
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