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Adaptation as a genome-wide autoregulatory principle in the stress response of yeast.

TitleAdaptation as a genome-wide autoregulatory principle in the stress response of yeast.
Publication TypeJournal Article
Year of Publication2011
AuthorsEduati, F, Di Camillo, B, Toffolo, G, Altafini, C, De Palo, G, Zampieri, M
JournalIET systems biology. 2011 Jul; 5(4):269-79
Abstract

The gene expression response of yeast to various types of stresses/perturbations shows a common functional and dynamical pattern for the vast majority of genes, characterised by a quick transient peak (affecting primarily short genes) followed by a return to the pre-stimulus level. Kinetically, this process of adaptation following the transient excursion can be modelled using a genome-wide autoregulatory mechanism by means of which yeast aims at maintaining a preferential concentration in its mRNA levels. The resulting feedback system explains well the different time constants observable in the transient response, while being in agreement with all the known experimental dynamical features. For example, it suggests that a very rapid transient can be induced also by a slowly varying concentration of the gene products.

URLhttp://hdl.handle.net/1963/5106
DOI10.1049/iet-syb.2009.0050

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