Modeling Gene Transcriptional Regulation: A Primer
The main goal of Systems Biology nowadays, from a broad perspective, is to explain how a living organism performs its basic activities of growth, maintenance, and reproduction. To attain this objective, investigation on a living phenomenon spans at least three levels of interactions: metabolic, transcriptional regulation, and signaling. A common aspect within these levels is biological phenomena control. In this text, we present an introduction to transcriptional regulation and its mathematical and computational modeling. From ubiquitous carbon source uptake to antibiotic resistance mechanisms exhibited by some bacteria, description of biological phenomena can always be associated with a certain control level, which is, directly or not, associated with transcriptional regulation. Our contribution here is to make explicit what are the consequences of making a transition from verbal (and visual) descriptive biological language to predictive domains of mathematical and computational modeling, showing what are the limitations and advantages this transition can imply.
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