Title |
A checkpoints capturing timing-robust Boolean model of the budding yeast cell cycle regulatory network
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Published in |
BMC Systems Biology, September 2012
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DOI | 10.1186/1752-0509-6-129 |
Pubmed ID | |
Authors |
Changki Hong, Minho Lee, Dongsup Kim, Dongsan Kim, Kwang-Hyun Cho, Insik Shin |
Abstract |
Cell cycle process of budding yeast (Saccharomyces cerevisiae) consists of four phases: G1, S, G2 and M. Initiated by stimulation of the G1 phase, cell cycle returns to the G1 stationary phase through a sequence of the S, G2 and M phases. During the cell cycle, a cell verifies whether necessary conditions are satisfied at the end of each phase (i.e., checkpoint) since damages of any phase can cause severe cell cycle defect. The cell cycle can proceed to the next phase properly only if checkpoint conditions are met. Over the last decade, there have been several studies to construct Boolean models that capture checkpoint conditions. However, they mostly focused on robustness to network perturbations, and the timing robustness has not been much addressed. Only recently, some studies suggested extension of such models towards timing-robust models, but they have not considered checkpoint conditions. |
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