Synthetic CRISPR-Cas gene activators for transcriptional reprogramming in bacteria.
Synthetic CRISPR-Cas gene activators for transcriptional reprogramming in bacteria.
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DOI:
10.1038/s41467-018-04901-6
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发表时间:
2018-06-27
影响因子:
16.6
通讯作者:
Zalatan JG
中科院分区:
文献类型:
--
作者:
Dong C;Fontana J;Patel A;Carothers JM;Zalatan JG
Methods to regulate gene expression programs in bacterial cells are limited by the absence of effective gene activators. To address this challenge, we have developed synthetic bacterial transcriptional activators in E. coli by linking activation domains to programmable CRISPR-Cas DNA binding domains. Effective gene activation requires target sites situated in a narrow region just upstream of the transcription start site, in sharp contrast to the relatively flexible target site requirements for gene activation in eukaryotic cells. Together with existing tools for CRISPRi gene repression, these bacterial activators enable programmable control over multiple genes with simultaneous activation and repression. Further, the entire gene expression program can be switched on by inducing expression of the CRISPR-Cas system. This work will provide a foundation for engineering synthetic bacterial cellular devices with applications including diagnostics, therapeutics, and industrial biosynthesis. The absence of effective gene activators in bacteria limits regulated expression programs. Here the authors design synthetic bacterial CRISPR-Cas transcriptional activators that can be used to construct multi-gene programs of activation and repression.
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影响因子:
3.6
作者:
Griffith, KL;Becker, SM;Wolf, RE
通讯作者:
Wolf, RE
影响因子:
14.8
作者:
Haynes, Chad A.;Gonzalez, Ramon
通讯作者:
Gonzalez, Ramon
影响因子:
5.6
作者:
Griffith, KL;Wolf, RE
通讯作者:
Wolf, RE
影响因子:
4.7
作者:
Fontana, Jason;Dong, Chen;Carothers, James M.
通讯作者:
Carothers, James M.
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