Metagenomic mining of regulatory elements enables programmable species-selective gene expression.

Metagenomic mining of regulatory elements enables programmable species-selective gene expression.
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DOI:
10.1038/nmeth.4633
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发表时间:
2018-05
期刊:
影响因子:
48
通讯作者:
Wang HH
Wang HH
中科院分区:
生物学1区
文献类型:
--
作者:
Johns NI;Gomes ALC;Yim SS;Yang A;Blazejewski T;Smillie CS;Smith MB;Alm EJ;Kosuri S;Wang HH

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Robust and predictably performing synthetic circuits rely on the use of well-characterized regulatory parts across different genetic backgrounds and environmental contexts. Here, we report the large-scale metagenomic mining of thousands of natural 5′-regulatory sequences from diverse bacteria and their multiplexed gene expression characterization in industrially-relevant microbes. We identified regulatory sequences with broad and host-specific expression properties that are robust in various growth conditions. We further observed significant differences between species’ capacity to utilize exogenous regulatory sequences. Finally, we demonstrated programmable species-selective gene expression that produces distinct and diverse output patterns in different microbes by leveraging regulatory sequences with pre-defined host-specificities. Together, these findings provide a rich resource of characterized and annotated natural regulatory sequences and a framework to engineer synthetic gene circuits with unique and tunable cross-species functionality and properties.
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