Term-seq reveals abundant ribo-regulation of antibiotics resistance in bacteria.

Term-seq reveals abundant ribo-regulation of antibiotics resistance in bacteria.
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DOI:
10.1126/science.aad9822
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发表时间:
2016-04-08
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Sorek R
Sorek R
中科院分区:
其他
文献类型:
--
作者:
Dar D;Shamir M;Mellin JR;Koutero M;Stern-Ginossar N;Cossart P;Sorek R

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Riboswitches and attenuators are cis-regulatory RNA elements, most of which control bacterial gene expression via metabolite-mediated, premature transcription termination. We developed an unbiased experimental approach for genome-wide discovery of such ribo-regulators in bacteria. We also devised an experimental platform that quantitatively measures the in-vivo activity of all such regulators in parallel, and enables rapid screening for ribo-regulators that respond to metabolites of choice. Using this approach we detected numerous antibiotic-responsive ribo-regulators that control antibiotic resistance genes in pathogens and in the human microbiome. Studying one such regulator in Listeria monocytogenes revealed an attenuation mechanism mediated by antibiotic-stalled ribosomes. Our results expose broad roles for conditional termination in regulating antibiotic resistance, and provide a tool for discovering riboswitches and attenuators that respond to novel ligands.
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