Modular construction of mammalian gene circuits using TALE transcriptional repressors.
Modular construction of mammalian gene circuits using TALE transcriptional repressors.
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DOI:
10.1038/nchembio.1736
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发表时间:
2015-03
影响因子:
14.8
通讯作者:
Xie Z
中科院分区:
文献类型:
--
作者:
Li Y;Jiang Y;Chen H;Liao W;Li Z;Weiss R;Xie Z
An important goal of synthetic biology is the rational design and predictable implementation of synthetic gene circuits using standardized and interchangeable parts. However, engineering of complex circuits in mammalian cells is currently limited by the availability of well-characterized and orthogonal transcriptional repressors. Here, we introduce a library of 26 reversible transcription activator-like effector repressors (TALERs) that bind newly designed hybrid promoters and exert transcriptional repression through steric hindrance of key transcriptional initiation elements. We demonstrate that using the input-output transfer curves of our TALERs enables accurate prediction of the behavior of modularly assembled TALER cascade and switch circuits. We also show that TALER switches employing feedback regulation exhibit improved accuracy for microRNA-based HeLa cancer cell classification versus HEK293 cells. Our TALER library is a valuable toolkit for modular engineering of synthetic circuits, enabling programmable manipulation of mammalian cells and helping elucidate design principles of coupled transcriptional and microRNA-mediated post-transcriptional regulation.
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影响因子:
46.9
作者:
Kramer, BP;Viretta, AU;Fussenegger, M
通讯作者:
Fussenegger, M
影响因子:
46.9
作者:
Bacchus, William;Lang, Moritz;Fussenegger, Martin
通讯作者:
Fussenegger, Martin
DOI:
10.1073/pnas.0408507102
发表时间:
2005-03-08
影响因子:
11.1
作者:
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通讯作者:
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通讯作者:
Lim WA