Dynamic allocation of orthogonal ribosomes facilitates uncoupling of co-expressed genes
Dynamic allocation of orthogonal ribosomes facilitates uncoupling of co-expressed genes
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正交核糖体的动态分配有利于共表达基因的解偶联
DOI:
10.1101/138362
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发表时间:
2017
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
Introduction of synthetic circuits into microbes creates competition between circuit and host genes for shared cellular resources, such as ribosomes. This can lead to the emergence of unwanted coupling between the expression of different circuit genes, complicating the design process and potentially leading to circuit failure. By expressing a synthetic 16S rRNA with altered specificity, we can partition the ribosome pool into host-specific and circuit-specific activities. We show mathematically and experimentally that the effects of resource competition can be alleviated by targeting genes to different ribosomal pools. This division of labour can be used to increase flux through a metabolic pathway. We develop a model of cell physiology which is able to capture these observations and use it to design a dynamic resource allocation controller. When implemented, this controller acts to decouple genes by increasing orthogonal ribosome production as the demand for translational resources by a synthetic circuit increases.
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DOI:
10.1002/ange.201506311
发表时间:
2015-10-19
期刊:
Angewandte Chemie (Weinheim an der Bergstrasse, Germany)
影响因子:
--
作者:
Fried SD;Schmied WH;Uttamapinant C;Chin JW
通讯作者:
Chin JW
影响因子:
7.8
作者:
Des Soye, Benjamin J.;Patel, Jaymin R.;Isaacs, Farren J.;Jewett, Michael C.
通讯作者:
Jewett, Michael C.
影响因子:
14.9
作者:
Gyorfy Z;Draskovits G;Vernyik V;Blattner FF;Gaal T;Posfai G
通讯作者:
Posfai G
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
3.5
作者:
HORTON, RM;HUNT, HD;PEASE, LR
通讯作者:
PEASE, LR