Tunable Expression Tools Enable Single-Cell Strain Distinction in the Gut Microbiome.
Tunable Expression Tools Enable Single-Cell Strain Distinction in the Gut Microbiome.
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可调表达工具在肠道微生物组中实现了单细胞应变的区别。
DOI:
10.1016/j.cell.2017.03.041
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发表时间:
2017-04-20
期刊:
影响因子:
64.5
通讯作者:
Sonnenburg JL
中科院分区:
文献类型:
--
作者:
Whitaker WR;Shepherd ES;Sonnenburg JL
Applying synthetic biology to engineer gut-resident microbes provides new avenues to investigate microbe-host interactions, perform diagnostics and deliver therapeutics. Here we describe a platform for engineering Bacteroides, the most abundant genus in the Western microbiota, which includes a process for high-throughput strain modification. We have identified a novel phage promoter and translational tuning strategy, and achieved an unprecedented level of expression that enables imaging of fluorescent-protein-expressing Bacteroides stably colonizing the mouse gut. A detailed characterization of the phage promoter has provided a set of constitutive promoters that span over four logs of strength without detectable fitness burden within the gut over 14 days. These promoters function predictably over a million-fold expression range in phylogenetically diverse Bacteroides species. With these promoters, unique fluorescent signatures were encoded to allow differentiation of six species within the gut. Fluorescent protein-based differentiation of isogenic strains revealed that priority of gut colonization determines colonic crypt occupancy.
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影响因子:
3.7
作者:
Engler, Carola;Kandzia, Romy;Marillonnet, Sylvestre
通讯作者:
Marillonnet, Sylvestre
影响因子:
30.3
作者:
Martens EC;Chiang HC;Gordon JI
通讯作者:
Gordon JI
影响因子:
46.9
作者:
Pédelacq, JD;Cabantous, S;Waldo, GS
通讯作者:
Waldo, GS
DOI:
10.1038/nbt1183-784
发表时间:
1983-01-01
期刊:
BIO-TECHNOLOGY
影响因子:
--
作者:
SIMON, R;PRIEFER, U;PUHLER, A
通讯作者:
PUHLER, A
影响因子:
17.1
作者:
Fischbach MA;Bluestone JA;Lim WA
通讯作者:
Lim WA