Results 21 to 30 of about 7,522 (226)

Riboswitch finder--a tool for identification of riboswitch RNAs [PDF]

open access: yesNucleic Acids Research, 2004
We describe a dedicated RNA motif search program and web server to identify RNA riboswitches. The Riboswitch finder analyses a given sequence using the web interface, checks specific sequence elements and secondary structure, calculates and displays the energy folding of the RNA structure and runs a number of tests including this information to ...
Peter Bengert, Thomas Dandekar
openaire   +2 more sources

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

Reconsidering the czcD (NiCo) Riboswitch as an Iron Riboswitch

open access: yesACS Bio & Med Chem Au, 2022
Recent work has proposed a new mechanism of bacterial iron regulation: riboswitches that undergo a conformational change in response to FeII. The czcD (NiCo) riboswitch was initially proposed to be specific for NiII and CoII, but we recently showed via a czcD-based fluorescent sensor that FeII is also a plausible physiological ligand for this ...
Jiansong Xu, Joseph A. Cotruvo
openaire   +2 more sources

A Decade of Riboswitches [PDF]

open access: yesCell, 2013
Riboswitches were discovered in 2002 in bacteria as RNA-based intracellular sensors of vitamin derivatives. During the last decade, naturally occurring RNA sensor elements have been found to bind a range of small metabolites and ions and to exert regulatory control of transcription, translation, splicing, and RNA stability.
Serganov, Alexander, Nudler, Evgeny
openaire   +2 more sources

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

Identification and characterisation of thiamine pyrophosphate (TPP) riboswitch in Elaeis guineensis.

open access: yesPLoS ONE, 2020
The oil palm (Elaeis guineensis) is an important crop in Malaysia but its productivity is hampered by various biotic and abiotic stresses. Recent studies suggest the importance of signalling molecules in plants in coping against stresses, which includes ...
Atiqah Subki   +4 more
doaj   +1 more source

Development and characterization of a glycine biosensor system for fine-tuned metabolic regulation in Escherichia coli

open access: yesMicrobial Cell Factories, 2022
Background In vivo biosensors have a wide range of applications, ranging from the detection of metabolites to the regulation of metabolic networks, providing versatile tools for synthetic biology and metabolic engineering.
Kun-Qiang Hong   +4 more
doaj   +1 more source

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