On the existence of oscillatory behavior in gene regulatory networks with cyclic interconnections

Yutaka Hori, Akifumi Takabe, Shinji Hara

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In this paper, we derive an existence condition of periodic oscillations in cyclic gene regulatory networks, of which the dynamical behavior is described by nonlinear differential equations. For this purpose, we first point out that change of the equilibrium point with respect to biochemical parameters is important for comprehensive analysis, and show the properties which the equilibrium point should satisfy. Then, by employing these properties, we derive an analytic condition for the existence of periodic oscillations in cyclic gene regulatory networks where genes have homogeneous dynamics. Compared to preceding studies, our condition has the following distinctive features: (i)it is analytically written only in terms of the system parameters, (ii)it is applicable for cyclic gene regulatory networks consisting of any number of genes. Thus, biological interpretation of the result is easily obtained, and, in fact, it is concluded that cyclic gene regulatory networks with homogeneous gene dynamics tend to have periodic oscillations as the number of genes gets large. Finally, we discuss the case of cyclic gene regulatory networks with heterogeneous gene dynamics.

本文言語English
ホスト出版物のタイトルICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings
ページ2525-2530
ページ数6
出版ステータスPublished - 2009 12 1
外部発表はい
イベントICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009 - Fukuoka, Japan
継続期間: 2009 8 182009 8 21

出版物シリーズ

名前ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings

Other

OtherICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009
CountryJapan
CityFukuoka
Period09/8/1809/8/21

ASJC Scopus subject areas

  • Information Systems
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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