Engineering Translational Resource Allocation Controllers: Mechanistic Models, Design Guidelines, and Potential Biological Implementations
Engineering Translational Resource Allocation Controllers: Mechanistic Models, Design Guidelines, and Potential Biological Implementations
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工程转化资源分配控制器:机制模型、设计指南和潜在的生物学实现
DOI:
10.1101/248948
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Darlington A
中科院分区:
文献类型:
--
作者:
Darlington A
The use of orthogonal ribosomes in combination with dynamic resource allocation controllers is a promising approach for relieving the negative effects of cellular resource limitations on the modularity of synthetic gene circuits. Here, we develop a detailed mechanistic model of gene expression and resource allocation, which when simplified to a tractable level of complexity, allows the rational design of translational resource allocation controllers. Analysis of this model reveals a fundamental design trade-off: that reducing coupling acts to decrease gene expression. Through a sensitivity analysis of the experimentally tunable controller parameters, we identify how each controller design parameter affects the overall closed-loop behavior of the system, leading to a detailed set of design guidelines for optimally managing this trade-off. On the basis of our designs, we evaluated a number of alternative potential experimental implementations of the proposed system using commonly available biological components. Finally, we show that the controller is capable of dynamically allocating ribosomes as needed to restore modularity in a number of more complex synthetic circuits, such as the repressilator, and activation cascades composed of multiple interacting modules.
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DOI:
10.3390/v7062746
发表时间:
2015-06-02
期刊:
Viruses
影响因子:
--
作者:
Hammerl JA;Roschanski N;Lurz R;Johne R;Lanka E;Hertwig S
通讯作者:
Hertwig S
DOI:
10.1101/138362
发表时间:
2017
期刊:
--
影响因子:
--
作者:
Darlington A
通讯作者:
Darlington A
影响因子:
14.9
作者:
Kamionka, A;Bogdanska-Urbaniak, J;Hillen, W
通讯作者:
Hillen, W
影响因子:
3.4
作者:
Wang,Yufang;Guo,Ling;Golding,Ido;Cox,EdwardC;Ong,NP
通讯作者:
Ong,NP
影响因子:
4.7
作者:
Carrera, Javier;Rodrigo, Guillermo;Jaramillo, Alfonso
通讯作者:
Jaramillo, Alfonso