Results 1 to 10 of about 7,960 (219)

In Vivo Behavior of the Tandem Glycine Riboswitch in Bacillus subtilis [PDF]

open access: yesmBio, 2017
In many bacterial species, the glycine riboswitch is composed of two homologous ligand-binding domains (aptamers) that each bind glycine and act together to regulate the expression of glycine metabolic and transport genes.
Arianne M. Babina   +2 more
doaj   +3 more sources

Riboswitch-controlled lipid conversion enables functional membrane asymmetry in artificial cells [PDF]

open access: yesCommunications Biology
Dynamic regulation of lipid membrane composition is fundamental to living cells; however, synthetic analogs capable of such regulation remain scarce. Here, we present an artificial cell platform in which riboswitch-mediated expression of phospholipase D (
Koki Kamiya, Sumin Lee, Kotaro Baba
doaj   +2 more sources

Cyclic Amide-Linked Oxazolidinone Triazoles as Inhibitors of the T-Box Riboswitch [PDF]

open access: yesMolecules
Antimicrobial resistance remains a critical global health challenge, and was intensified by the COVID-19 pandemic. To address this growing threat, novel antibacterial agents targeting unconventional mechanisms are urgently needed.
Eric Parsons   +6 more
doaj   +2 more sources

Designing molecular RNA switches with Restricted Boltzmann machines [PDF]

open access: yesNature Communications
Riboswitches are structured allosteric RNA molecules that change conformation upon metabolite binding, triggering a regulatory response. Here we focus on the de novo design of riboswitch-like aptamers, the core part of the riboswitch undergoing ...
Jorge Fernandez-de-Cossio-Diaz   +8 more
doaj   +2 more sources

Mutations of N1 Riboswitch Affect its Dynamics and Recognition by Neomycin Through Conformational Selection

open access: yesFrontiers in Molecular Biosciences, 2021
Short, structured fragments of non-coding mRNA may act as molecular switches upon binding specific ligands, regulating the translation of proteins encoded downstream this mRNA sequence.
Piotr Chyży   +9 more
doaj   +1 more source

Signal amplification and optimization of riboswitch-based hybrid inputs by modular and titratable toehold switches

open access: yesJournal of Biological Engineering, 2021
Background Synthetic biological circuits are widely utilized to control microbial cell functions. Natural and synthetic riboswitches are attractive sensor modules for use in synthetic biology applications.
Yunhee Hwang   +4 more
doaj   +1 more source

TPP riboswitch-dependent regulation of an ancient thiamin transporter in Candida. [PDF]

open access: yesPLoS Genetics, 2018
Riboswitches are non-coding RNA molecules that regulate gene expression by binding to specific ligands. They are primarily found in bacteria. However, one riboswitch type, the thiamin pyrophosphate (TPP) riboswitch, has also been described in some plants,
Paul D Donovan   +6 more
doaj   +1 more source

Computational study of unfolding and regulation mechanism of preQ1 riboswitches. [PDF]

open access: yesPLoS ONE, 2012
Riboswitches are novel RNA regulatory elements. Each riboswitch molecule consists of two domains: aptamer and express platform. The three-dimensional (3D) structure of the aptamer domain, depending on ligand binding or not, controls that of the express ...
Zhou Gong   +3 more
doaj   +1 more source

A variant of guanidine-IV riboswitches exhibits evidence of a distinct ligand specificity

open access: yesRNA Biology, 2023
Riboswitches are regulatory RNAs that specifically bind a small molecule or ion. Like metabolite-binding proteins, riboswitches can evolve new ligand specificities, and some examples of this phenomenon have been validated.
Felina Lenkeit   +5 more
doaj   +1 more source

Novel riboswitch ligand analogs as selective inhibitors of guanine-related metabolic pathways. [PDF]

open access: yesPLoS Pathogens, 2010
Riboswitches are regulatory elements modulating gene expression in response to specific metabolite binding. It has been recently reported that riboswitch agonists may exhibit antimicrobial properties by binding to the riboswitch domain.
Jérôme Mulhbacher   +5 more
doaj   +1 more source

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