Absolute Rate Theories of Epigenetic Stability

Spontaneous switching events in most characterized genetic switches are rare, resulting in extremely stable epigenetic properties. We show how simple arguments lead to theories of the rate of such events much like the absolute rate theory of chemical reactions corrected by a transmission factor. Bot...

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Veröffentlicht in:Proceedings of the National Academy of Sciences of the United States of America. - National Academy of Sciences of the United States of America. - 102(2005), 52, Seite 18926-18931
Weitere Verfasser: Onuchic, José N., Wolynes, Peter G.
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Proceedings of the National Academy of Sciences of the United States of America
Schlagworte:Rate Theory Stochastic Gene Expression Gene Switches Physical sciences Biological sciences Mathematics
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520 |a Spontaneous switching events in most characterized genetic switches are rare, resulting in extremely stable epigenetic properties. We show how simple arguments lead to theories of the rate of such events much like the absolute rate theory of chemical reactions corrected by a transmission factor. Both the probability of the rare cellular states that allow epigenetic escape and the transmission factor depend on the rates of DNA binding and unbinding events and on the rates of protein synthesis and degradation. Different mechanisms of escape from the stable attractors occur in the nonadiabatic, weakly adiabatic, and strictly adiabatic regimes, characterized by the relative values of those input rates. 
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650 4 |a Rate Theory 
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650 4 |a Biological sciences  |x Biology  |x Genetics  |x Genomics  |x Epigenetics 
650 4 |a Physical sciences  |x Physics  |x Microphysics  |x Particle physics  |x Particle motion  |x Mean free path 
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650 4 |a Biological sciences  |x Biology  |x Genetics  |x Molecular genetics  |x Genes 
650 4 |a Physical sciences  |x Chemistry  |x Chemical compounds  |x Chemicals  |x Polymers  |x Biopolymers  |x Proteins  |x DNA binding proteins  |x Transcription factors 
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650 4 |a Mathematics  |x Mathematical procedures  |x Approximation 
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650 4 |a Mathematics  |x Applied mathematics  |x Statistics  |x Applied statistics  |x Descriptive statistics  |x Statistical distributions  |x Distribution functions  |x Probability distributions  |x Biological Sciences 
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700 1 |a Wolynes, Peter G.  |e verfasserin  |4 aut 
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