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Transcription factor networks, synth...

McIsaac, Robert Scott.

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Transcription factor networks, synthetic gene expression switches, and chaotic cell-cycle oscillations.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Transcription factor networks, synthetic gene expression switches, and chaotic cell-cycle oscillations./
Author:	McIsaac, Robert Scott.
Description:	155 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-06(E), Section: B.
Contained By:	Dissertation Abstracts International74-06B(E).
Subject:	Biology, Molecular. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3553153
ISBN:	9781267924186

Transcription factor networks, synthetic gene expression switches, and chaotic cell-cycle oscillations.
McIsaac, Robert Scott.

Transcription factor networks, synthetic gene expression switches, and chaotic cell-cycle oscillations. - 155 p.

Source: Dissertation Abstracts International, Volume: 74-06(E), Section: B.

Thesis (Ph.D.)--Princeton University, 2013.

A conserved aspect of cellular life is the need to respond and adapt to a dynamic environment. Complex interwoven regulatory networks process extracellular cues to coordinate appropriate adaptive responses. At the promoter level, these responses are driven by the presence or absence of transcription factor proteins, which facilitate or block expression of target genes. In the fungus (and model eukaryotic system) Saccharomyces cerevisiae, a relatively small number of transcription factors (&sim;200) are involved in the regulation of &sim;5700 genes.

ISBN: 9781267924186Subjects--Topical Terms:

1017719
Biology, Molecular.

Transcription factor networks, synthetic gene expression switches, and chaotic cell-cycle oscillations.
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020 $a 9781267924186
035 $a (MiAaPQ)AAI3553153
035 $a AAI3553153
040 $a MiAaPQ $c MiAaPQ
100 1 $a McIsaac, Robert Scott. $3 2102180
245 1 0 $a Transcription factor networks, synthetic gene expression switches, and chaotic cell-cycle oscillations.
300 $a 155 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-06(E), Section: B.
500 $a Adviser: David Botstein.
502 $a Thesis (Ph.D.)--Princeton University, 2013.
520 $a A conserved aspect of cellular life is the need to respond and adapt to a dynamic environment. Complex interwoven regulatory networks process extracellular cues to coordinate appropriate adaptive responses. At the promoter level, these responses are driven by the presence or absence of transcription factor proteins, which facilitate or block expression of target genes. In the fungus (and model eukaryotic system) Saccharomyces cerevisiae, a relatively small number of transcription factors (&sim;200) are involved in the regulation of &sim;5700 genes.
520 $a In this thesis, new synthetic tools that allow an experimenter to rapidly perturb the levels of single regulators dynamically are described. These tools are functional under physiologically diverse conditions and (other then the factor being perturbed) are nearly or completely inert with respect to the cellular physiology. By coupling these synthetic perturbation systems with the microarray technology platform, one can globally assess the strength and dynamics with which a perturbed factor affects (at the transcriptional level) every gene in the genome.
520 $a As a proof of principle of this approach, the role of five different transcription factors in the combinatorial regulation of the yeast sulfur metabolic network were dissected. These data were coupled with bioinformatic analyses and biophysical mod- eling to describe the dynamic response of downstream effectors. Given the success of this approach in elucidating the regulatory architecture within the sulfur metabolic network, a panel of 70 strains containing different inducible alleles was constructed. Perturbation data for 22 different transcription factors (some under multiple environment conditions) and a total of 213 microarrays have been collected to date.
520 $a Finally, numerical simulations were employed to investigate a different type of cellular regulatory network: the embryonic cell-cycle control circuit. Following fertilization, embryos from many species undergo synchronous, clock-like cell divisions. Taking the equations previously developed to describe the cell cycle of the African tree frog Xenopus laevis and adding a spatial component, we discovered that these equations are susceptible to chaotic behavior, and establish a novel design principle whereby the widely conserved post-fertilization calcium wave initiates and ensures synchrony of cellular divisions.
590 $a School code: 0181.
650 4 $a Biology, Molecular. $3 1017719
650 4 $a Biology, Genetics. $3 1017730
690 $a 0307
690 $a 0369
710 2 $a Princeton University. $b Quantitative Computational Biology. $3 2102181
773 0 $t Dissertation Abstracts International $g 74-06B(E).
790 $a 0181
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3553153