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RNA thermometers are widespread upstream of ABC transporter genes in bacteria.


ABSTRACT: RNA thermometers are temperature-sensing non-coding RNAs that regulate the expression of downstream genes. A well-characterized RNA thermometer motif discovered in bacteria is the ROSE-like element (repression of heat shock gene expression). ATP-binding cassette (ABC) transporters are a superfamily of transmembrane proteins that harness ATP hydrolysis to facilitate the export and import of substrates across cellular membranes. Through structure-guided bioinformatics, we discovered that ROSE-like RNA thermometers are widespread upstream of ABC transporter genes in bacteria. X-ray crystallography, biochemistry, and cellular assays indicate that these RNA thermometers are functional regulatory elements. This study expands the known biological role of RNA thermometers to these key membrane transporters.

SUBMITTER: Tong AY 

PROVIDER: S-EPMC11342760 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature

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RNA thermometers are widespread upstream of ABC transporter genes in bacteria.

Tong Alina Y AY   Tong Elisha L EL   Hannani Michael A MA   Shaffer Samantha N SN   Santiago Danna D   Ferré-D'Amaré Adrian R AR   Passalacqua Luiz F M LFM   Abdelsayed Michael M MM  

The Journal of biological chemistry 20240709 8


RNA thermometers are temperature-sensing non-coding RNAs that regulate the expression of downstream genes. A well-characterized RNA thermometer motif discovered in bacteria is the ROSE-like element (repression of heat shock gene expression). ATP-binding cassette (ABC) transporters are a superfamily of transmembrane proteins that harness ATP hydrolysis to facilitate the export and import of substrates across cellular membranes. Through structure-guided bioinformatics, we discovered that ROSE-like  ...[more]

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2013-03-01 | GSE43807 | GEO