Homologous Quorum Sensing Regulatory Circuit: A Dual-Input Genetic Controller for Modulating Quorum Sensing-Mediated Protein Expression in E. coli.
Homologous Quorum Sensing Regulatory Circuit: A Dual-Input Genetic Controller for Modulating Quorum Sensing-Mediated Protein Expression in E. coli.
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DOI:
10.1021/acssynbio.0c00179
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发表时间:
2020-10-16
影响因子:
4.7
通讯作者:
Bentley WE
中科院分区:
文献类型:
--
作者:
Hauk P;Stephens K;Virgile C;VanArsdale E;Pottash AE;Schardt JS;Jay SM;Sintim HO;Bentley WE
We developed a hybrid synthetic circuit that co-opts the genetic regulation of the native bacterial quorum sensing autoinducer-2 and imposes an extra external controller for maintaining tightly controlled gene expression. This dual-input genetic controller was mathematically modeled and, by design, can be operated in three modes: a constitutive mode that enables consistent and high levels of expression; a tightly repressed mode in which there is very little background expression; and an inducible mode in which concentrations of two signals (arabinose and autoinducer-2) determine the net amplification of the gene(s)-of-interest. We demonstrate the utility of the circuit for the controlled expression of human granulocyte macrophage colony stimulating factor in an engineered probiotic E. coli. This dual-input genetic controller is the first homologous AI-2 quorum sensing circuit that has the ability to be operated in three different modes. We believe it has the potential for wide-ranging biotechnological applications due its versatile features.
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影响因子:
3.5
作者:
CHEREPANOV, PP;WACKERNAGEL, W
通讯作者:
WACKERNAGEL, W
影响因子:
5.6
作者:
He, Lian;Yang, Huijun;Xia, Liqiu
通讯作者:
Xia, Liqiu
影响因子:
--
作者:
He L;Yang H;Liu F;Chen Y;Tang S;Ji W;Tang J;Liu Z;Sun Y;Hu S;Zhang Y;Liu X;Huang W;Ding X;Xia L
通讯作者:
Xia L
DOI:
10.3390/ph9040060
发表时间:
2016-10-05
期刊:
Pharmaceuticals (Basel, Switzerland)
影响因子:
--
作者:
Geldart K;Forkus B;McChesney E;McCue M;Kaznessis YN
通讯作者:
Kaznessis YN
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