Riboswitches are functional RNA elements that regulate gene expression by directly detecting metabolites. Twenty years have passed since it was first discovered, researches on riboswitches are becoming increasingly standardized and refined, which could significantly promote people's cognition of RNA function as well. Here, we focus on some representative orphan riboswitches, enumerate the structural and functional transformation and artificial design of riboswitches including the coupling with ribozymes, hoping to attain a comprehensive understanding of riboswitch research.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10265488 | PMC |
http://dx.doi.org/10.1016/j.synbio.2023.05.008 | DOI Listing |
Mol Ther
January 2025
Nucleic Acid Chemistry and Engineering Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904 0495, Japan. Electronic address:
Transgene expression in stem cells is a powerful means of regulating cellular properties and differentiation into various cell types. However, existing vectors for transgene expression in stem cells suffer from limitations such as the need for genomic integration, the transient nature of gene expression, and the inability to temporally regulate transgene expression, which hinder biomedical and clinical applications. Here we report a new class of RNA virus-based vectors for scalable and integration-free transgene expression in mouse embryonic stem cells (mESCs).
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Department of Biochemistry & Molecular Biology, University of Georgia, Athens, GA 30602.
is a dominant member of the human gut microbiome and produces short-chain fatty acids (SCFAs). These promote immune system function and inhibit inflammation, making this microbe important for human health. Lactate is a primary source of gut SCFAs but its utilization by has not been explored.
View Article and Find Full Text PDFNat Chem Biol
January 2025
Institute of Organic Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.
Ribozymes that catalyze site-specific RNA modification have recently gained increasing interest for their ability to mimic methyltransferase enzymes and for their application to install molecular tags. Recently, we reported SAMURI as a site-specific alkyltransferase ribozyme using S-adenosylmethionine (SAM) or a stabilized analog to transfer a methyl or propargyl group to N of an adenosine. Here, we report the crystal structures of SAMURI in the postcatalytic state.
View Article and Find Full Text PDFNucleic Acids Res
January 2025
Advanced Analysis Data Center, Korea Institute of Science and Technology, Hwarang-ro 14-5, Seongbuk-gu, Seoul 02792, Republic of Korea.
Riboswitches are RNAs that recognize ligands and regulate gene expression. They are typically located in the untranslated region of bacterial messenger RNA and consist of an aptamer and an expression platform. In this study, we examine the folding pathway of the Vc2 (Vibrio cholerae) riboswitch aptamer domain, which targets the bacterial secondary messenger cyclic-di-GMP.
View Article and Find Full Text PDFFoods
December 2024
Microorganisms and Active Biomolecules Laboratory (LR03ES03), Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia.
The use of lactic acid bacteria for developing functional foods is increasing for their ability to synthesize beneficial metabolites such as vitamin B (riboflavin, RF) and postbiotic compounds. Here, the spontaneous mutant FS54 B2 was isolated by treatment of the dextran-producing FS54 strain with roseoflavin. FS54 B2 overproduced RF (4.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!