Results 21 to 30 of about 764 (211)

Parent tRNA Modification Status Determines the Induction of Functional tRNA-Derived RNA by Respiratory Syncytial Virus Infection

open access: yesViruses, 2022
tRNA-derived RNA fragments (tRFs) are a recently discovered family of small noncoding RNAs (sncRNAs). We previously reported that respiratory syncytial virus (RSV) infection induces functional tRFs, which are derived from a limited subset of parent tRNAs,
Eun-Jin Choi   +10 more
doaj   +1 more source

Multiple Layers of Stress-Induced Regulation in tRNA Biology

open access: yesLife, 2016
tRNAs are the fundamental components of the translation machinery as they deliver amino acids to the ribosomes during protein synthesis. Beyond their essential function in translation, tRNAs also function in regulating gene expression, modulating ...
Hsiao-Yun Huang, Anita K. Hopper
doaj   +1 more source

Posttranscriptional modification of tRNA in psychrophilic bacteria [PDF]

open access: yesJournal of Bacteriology, 1997
Posttranscriptional modification in tRNA is known to play a multiplicity of functional roles, including maintenance of tertiary structure and cellular adaptation to environmental factors such as temperature. Nucleoside modification has been studied in unfractionated tRNA from three psychrophilic bacteria (ANT-300 and Vibrio sp.
J J, Dalluge   +5 more
openaire   +2 more sources

Charging the code — tRNA modification complexes

open access: yesCurrent Opinion in Structural Biology, 2019
All types of cellular RNAs are post-transcriptionally modified, constituting the so called 'epitranscriptome'. In particular, tRNAs and their anticodon stem loops represent major modification hotspots. The attachment of small chemical groups at the heart of the ribosomal decoding machinery can directly affect translational rates, reading frame ...
Rościsław Krutyhołowa   +2 more
openaire   +3 more sources

TrmL and TusA Are Necessary for rpoS and MiaA Is Required for hfq Expression in Escherichia coli

open access: yesBiomolecules, 2017
Previous work demonstrated that efficient RNA Polymerase sigma S-subunit (RpoS) translation requires the N6-isopentenyladenosine i6A37 transfer RNA (tRNA) modification for UUX-Leu decoding.
Joseph I. Aubee   +2 more
doaj   +1 more source

Inosine modifications in human tRNAs are incorporated at the precursor tRNA level [PDF]

open access: yesNucleic Acids Research, 2015
Transfer RNAs (tRNAs) are key adaptor molecules of the genetic code that are heavily modified post-transcriptionally. Inosine at the first residue of the anticodon (position 34; I34) is an essential widespread tRNA modification that has been poorly studied thus far.
Torres, Adrian Gabriel   +8 more
openaire   +2 more sources

A tRNA modification in Mycobacterium tuberculosis facilitates optimal intracellular growth

open access: yeseLife, 2023
Diverse chemical modifications fine-tune the function and metabolism of tRNA. Although tRNA modification is universal in all kingdoms of life, profiles of modifications, their functions, and physiological roles have not been elucidated in most organisms ...
Francesca G Tomasi   +3 more
doaj   +1 more source

Biosynthesis and functions of sulfur modifications in tRNA [PDF]

open access: yesFrontiers in Genetics, 2014
Sulfur is an essential element for a variety of cellular constituents in all living organisms. In tRNA molecules, there are many sulfur-containing nucleosides, such as the derivatives of 2-thiouridine (s(2)U), 4-thiouridine (s(4)U), 2-thiocytidine (s(2)C), and 2-methylthioadenosine (ms(2)A).
openaire   +3 more sources

Photoaffinity reagents for modification of aminoacyl‐tRNA synthetases [PDF]

open access: yesFEBS Letters, 1974
Up to now, a few derivatives of aminoacyl-tRNA with a reactive group attached to the aminoacyl residue [l-4] and a reactive analog of an amino acid [4] have been used for the affinity labeling of aminoacyltRNA synthetases (EC 6.1 .l). For detailed investigation of the active centers of these enzymes, it is necessary to prepare tRNA analogs bearing ...
Budker, V.G.   +5 more
openaire   +2 more sources

The Versatile Roles of the tRNA Epitranscriptome during Cellular Responses to Toxic Exposures and Environmental Stress

open access: yesToxics, 2019
Living organisms respond to environmental changes and xenobiotic exposures by regulating gene expression. While heat shock, unfolded protein, and DNA damage stress responses are well-studied at the levels of the transcriptome and proteome, tRNA-mediated ...
Sabrina M. Huber   +3 more
doaj   +1 more source

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