Robustness and adaptation reveal plausible cell cycle controlling subnetwork in Saccharomyces cerevisiae

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105644

Title:	Robustness and adaptation reveal plausible cell cycle controlling subnetwork in Saccharomyces cerevisiae
Authors:	黎璧賢;Huang, Jiun-Yan;Huang, Chi-Wei;Kao, Kuo-Ching;Lai, Pik-Yin
Contributors:	理學院物理學系
Keywords:	brain;Cell cycle;Cell Cycle - genetics;cytology;DNA Damage;evolution;Evolution, Molecular;Gene Regulatory Networks;genetics;metabolism;Models, Biological;Modularity;Protein Interaction Maps;Protein Interaction Maps - genetics;protein-protein interactions;Protein–protein interaction;Robustness;Saccharomyces cerevisiae;Saccharomyces cerevisiae - cytology;Saccharomyces cerevisiae - genetics;Saccharomyces cerevisiae Proteins;Saccharomyces cerevisiae Proteins - genetics;Saccharomyces cerevisiae Proteins - metabolism;transcription (genetics);yeasts
Date:	2013-04-10
Issue Date:	2026-04-23 12:44:28 (UTC+8)
Publisher:	Elsevier;Netherlands: Elsevier B.V
Abstract:	摘要： Biological systems are often organized spatially and temporally by multi-scale functional subsystems (modules). A specific subcellular process often corresponds to a subsystem composed of some of these interconnected modules. Accurate identification of system-level modularity organization from the large scale networks can provide valuable information on subsystem models of subcellular processes or physiological phenomena. Computational identification of functional modules from the large scale network is the key approach to solve the complexity of modularity in the past decade, but the overlapping and multi-scale nature of modules often renders unsatisfactory results in these methods. Most current methods for modularity detection are optimization-based and suffered from the drawback of size resolution limit. It is difficult to trace the origin of the unsatisfactory results, which may be due to poor data, inappropriate objective function selection or simply resulted from natural evolution, and hence no system-level accurate modular models for subcellular processes can be offered. Motivated by the idea of evolution with robustness and adaption as guiding principles, we propose a novel approach that can identify significant multi-scale overlapping modules that are sufficiently accurate at the system and subsystem levels, giving biological insights for subcellular processes. The success of our evolution strategy method is demonstrated by applying to the yeast protein-protein interaction network. Functional subsystems of important physiological phenomena can be revealed. In particular, the cell cycle controlling network is selected for detailed discussion. The cell cycle subcellular processes in yeast can be successfully dissected into functional modules of cell cycle control, cell size check point, spindle assembly checkpoint, and DNA damage check point in G2/M and S phases. The interconnections between check points and cell cycle control modules provide clues on the signal stimulus entries of check points into the cell cycle, which are consistent with experimental findings. This evolution strategy method can be applied adequately to extract the plausible yeast cell cycle subnetworks from the whole network. Connections between modules in the obtained cell cycle subnetworks reveal significant cell cycle control mechanisms. This method can also be useful when applied to other biological systems at various temporal and spatial scales for example, the gene transcription networks, and biological systems from mesoscopic scale, e.g cortical network in brain, to subcellular molecular networks. ► A new method to detect multi-scale overlapped biological modules is proposed. ► This evolution-based method is applied to the yeast protein interaction network. ► Functional subsystems of important physiological phenomena can be revealed. ► Connections between the detected modules reveal cell cycle control mechanisms. 其他題名： Gene 出版者： Netherlands: Elsevier B.V 出版日期： 2013-04-10 出處： Gene, 2013-04, Vol.518 (1), p.35-41 版權： 2012 版權： Crown Copyright © 2012. Published by Elsevier B.V. All rights reserved. 識別號： ISSN: 0378-1119 識別號： ISSN: 1879-0038 識別號： EISSN: 1879-0038 識別號： DOI: 10.1016/j.gene.2012.11.088 識別號： PMID: 23274654
Appears in Collections:	[Department of Physics] journal & Dissertation

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