Abstract
The RFN element is a highly conserved domain that is found frequently in the 5′-untranslated regions of prokaryotic mRNAs that encode for flavin mononucleotide (FMN) biosynthesis and transport proteins. We report that this domain serves as the receptor for a metabolite-dependent riboswitch that directly binds FMN in the absence of proteins. Our results also indicate that in Bacillus subtilis , the riboswitch most likely controls gene expression by causing premature transcription termination of the ribDEAHT operon and precluding access to the ribosome-binding site of ypaA mRNA. Sequence and structural analyses indicate that the RFN element is a natural FMN-binding aptamer, the allosteric character of which is harnessed to control gene expression.
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Dates
Type | When |
---|---|
Created | 22 years, 8 months ago (Dec. 10, 2002, 12:42 p.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 7:52 a.m.) |
Indexed | 3 minutes ago (Aug. 28, 2025, 5:35 p.m.) |
Issued | 22 years, 9 months ago (Nov. 27, 2002) |
Published | 22 years, 9 months ago (Nov. 27, 2002) |
Published Online | 22 years, 9 months ago (Nov. 27, 2002) |
Published Print | 22 years, 8 months ago (Dec. 10, 2002) |
@article{Winkler_2002, title={An mRNA structure that controls gene expression by binding FMN}, volume={99}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.212628899}, DOI={10.1073/pnas.212628899}, number={25}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Winkler, Wade C. and Cohen-Chalamish, Smadar and Breaker, Ronald R.}, year={2002}, month=nov, pages={15908–15913} }