A versatile cis-acting inverter module for synthetic translational switches.

A versatile cis-acting inverter module for synthetic translational switches.
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DOI:
10.1038/ncomms3393
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发表时间:
2013
影响因子:
16.6
通讯作者:
Saito, Hirohide
Saito, Hirohide
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Endo, Kei;Hayashi, Karin;Inoue, Tan;Saito, Hirohide

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人工基因开关已经在活细胞中单独设计和调整。将现有的OFF开关直接反转为ON开关的方法应该非常方便地从良好表征的模块构造复杂电路,但是开发这样的技术仍然是一个挑战。在这里,我们提出了一个顺式作用的RNA模块,在哺乳动物细胞中将合成的翻译OFF开关的功能反转为ON开关。这种反转响应于特定的输入信号而保持父母开关的特性。此外,我们展示了同时和特定的表达控制的关闭和打开开关。该模块符合通用性标准,并扩展了为人工控制哺乳动物细胞行为而开发的基于mRNA的信息处理系统的多功能性。 人工遗传电路的设计可以精确控制细胞行为和表型。Saito及其同事提出了一种新的RNA模块,可以将翻译OFF的功能反转为ON开关,并证明其在哺乳动物细胞中的实用性。
Artificial genetic switches have been designed and tuned individually in living cells. A method to directly invert an existing OFF switch to an ON switch should be highly convenient to construct complex circuits from well-characterized modules, but developing such a technique has remained a challenge. Here we present a cis-acting RNA module to invert the function of a synthetic translational OFF switch to an ON switch in mammalian cells. This inversion maintains the property of the parental switch in response to a particular input signal. In addition, we demonstrate simultaneous and specific expression control of both the OFF and ON switches. The module fits the criteria of universality and expands the versatility of mRNA-based information processing systems developed for artificially controlling mammalian cellular behaviour. Artificial genetic circuits have been designed to enable precise control of cellular behaviour and phenotypes. Saito and colleagues present a new RNA module that can invert the function of a translational OFF to an ON switch and demonstrate its utility in mammalian cells.
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