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Design and implementation of a biomolecular concentration tracker
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Hsiao, Victoria, Emmanuel de los Santos, L. C., Whitaker, Weston R., Dueber, John E. and Murray, Richard M. (2015) Design and implementation of a biomolecular concentration tracker. ACS Synthetic Biology, 4 (2). pp. 150-161. doi:10.1021/sb500024b
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Official URL: http://dx.doi.org/10.1021/sb500024b
Abstract
As a field, synthetic biology strives to engineer increasingly complex artificial systems in living cells. Active feedback in closed loop systems offers a dynamic and adaptive way to ensure constant relative activity independent of intrinsic and extrinsic noise. In this work, we use synthetic protein scaffolds as a modular and tunable mechanism for concentration tracking through negative feedback. Input to the circuit initiates scaffold production, leading to colocalization of a two-component system and resulting in the production of an inhibitory antiscaffold protein. Using a combination of modeling and experimental work, we show that the biomolecular concentration tracker circuit achieves dynamic protein concentration tracking in Escherichia coli and that steady state outputs can be tuned.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QH Natural history > QH301 Biology | ||||||||
Divisions: | Faculty of Science > Life Sciences (2010- ) | ||||||||
Library of Congress Subject Headings (LCSH): | Cells, Synthetic biology, Biotechnology | ||||||||
Journal or Publication Title: | ACS Synthetic Biology | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 2161-5063 | ||||||||
Official Date: | 20 February 2015 | ||||||||
Dates: |
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Volume: | 4 | ||||||||
Number: | 2 | ||||||||
Page Range: | pp. 150-161 | ||||||||
DOI: | 10.1021/sb500024b | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access | ||||||||
Funder: | National Defense Science and Engineering Graduate (NDSEG), Benjamin M. Rosen Bioengineering Center, Gordon and Betty Moore Foundation, Institute for Collaborative Biotechnologies (ICB) | ||||||||
Grant number: | GM07616, GBMF2809, W911NF-09-0001 |
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