Oscillations and bistability in a model of ERK regulation
Oscillations and bistability in a model of ERK regulation
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ERK 调节模型中的振荡和双稳态
DOI:
10.1007/s00285-019-01402-y
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发表时间:
2019
影响因子:
1.9
通讯作者:
Torres, Angélica
中科院分区:
文献类型:
--
作者:
Obatake, Nida;Shiu, Anne;Tang, Xiaoxian;Torres, Angélica
This work concerns the question of how two important dynamical properties, oscillations and bistability, emerge in an important biological signaling network. Specifically, we consider a model for dual-site phosphorylation and dephosphorylation of extracellular signal-regulated kinase (ERK). We prove that oscillations persist even as the model is greatly simplified (reactions are made irreversible and intermediates are removed). Bistability, however, is much less robust—this property is lost when intermediates are removed or even when all reactions are made irreversible. Moreover, bistability is characterized by the presence of two reversible, catalytic reactions: as other reactions are made irreversible, bistability persists as long as one or both of the specified reactions is preserved. Finally, we investigate the maximum number of steady states, aided by a network’s “mixed volume” (a concept from convex geometry). Taken together, our results shed light on the question of how oscillations and bistability emerge from a limiting network of the ERK network—namely, the fully processive dual-site network—which is known to be globally stable and therefore lack both oscillations and bistability. Our proofs are enabled by a Hopf bifurcation criterion due to Yang, analyses of Newton polytopes arising from Hurwitz determinants, and recent characterizations of multistationarity for networks having a steady-state parametrization.
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DOI:
--
发表时间:
2011
期刊:
arXiv.org
影响因子:
--
作者:
Elizabeth Gross;Sonja Petrović;J. Verschelde
通讯作者:
J. Verschelde
影响因子:
1.9
作者:
M. Giaroli;Frédéric Bihan;A. Dickenstein
通讯作者:
A. Dickenstein
DOI:
10.1016/s0893-9659(02)80014-3
发表时间:
2002-07
期刊:
Appl. Math. Lett.
影响因子:
--
作者:
Xiaojing Yang
通讯作者:
Xiaojing Yang
影响因子:
3.9
作者:
Thapanar Suwanmajo;J. Krishnan
通讯作者:
J. Krishnan
影响因子:
3.5
作者:
AmirHosein Sadeghimanesh;E. Feliu
通讯作者:
E. Feliu