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The Stringent Response-Regulated sRNA Transcriptome of . | LitMetric

The Stringent Response-Regulated sRNA Transcriptome of .

Front Cell Infect Microbiol

Division of Biological Sciences, University of Montana, Missoula, MT, United States.

Published: July 2019

AI Article Synopsis

Article Abstract

The Lyme disease spirochete () must tolerate nutrient stress to persist in the tick phase of its enzootic life cycle. We previously found that the stringent response mediated by Rel globally regulates gene expression to facilitate persistence in the tick vector. Here, we show that Rel regulates the expression of a swath of small RNAs (sRNA), affecting 36% of previously identified sRNAs in . This is the first sRNA regulatory mechanism identified in any spirochete. Threefold more sRNAs were Rel-upregulated than downregulated during nutrient stress and included antisense, intergenic and 5' untranslated region sRNAs. Rel-regulated sRNAs associated with genes known to be important for host infection ( and ) as well as persistence in the tick ( and ) were identified, suggesting potential mechanisms for post-transcriptional regulation of gene expression.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6041397PMC
http://dx.doi.org/10.3389/fcimb.2018.00231DOI Listing

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