Results 11 to 20 of about 241,053 (344)

Noncanonical Roles of tRNAs: tRNA Fragments and Beyond

open access: yesAnnual Review of Genetics, 2020
As one of the most abundant and conserved RNA species, transfer RNAs (tRNAs) are well known for their role in reading the codons on messenger RNAs and translating them into proteins. In this review, we discuss the noncanonical functions of tRNAs.
Zhangli, Su   +3 more
openaire   +4 more sources

The dysregulation of tRNAs and tRNA derivatives in cancer [PDF]

open access: yesJournal of Experimental & Clinical Cancer Research, 2018
Transfer RNAs (tRNAs), traditionally considered to participate in protein translation, were interspersed in the entire genome. Recent studies suggested that dysregulation was observed in not only tRNAs, but also tRNA derivatives generated by the specific cleavage of pre- and mature tRNAs in the progression of cancer.
Shi-qiong Huang   +7 more
openaire   +4 more sources

tRNA splicing [PDF]

open access: yesJournal of Biological Chemistry, 1998
Introns interrupt the continuity of many eukaryal genes, and therefore their removal by splicing is a crucial step in gene expression. Interestingly, even within Eukarya there are at least four splicing mechanisms.
Abelson, John   +2 more
core   +4 more sources

Methylated nucleosides in tRNA and tRNA methyltransferases [PDF]

open access: yesFrontiers in Genetics, 2014
To date, more than 90 modified nucleosides have been found in tRNA and the biosynthetic pathways of the majority of tRNA modifications include a methylation step(s).
Hiroyuki eHori
doaj   +3 more sources

Disrupted tRNA Genes and tRNA Fragments: A Perspective on tRNA Gene Evolution [PDF]

open access: yesLife, 2015
Transfer RNAs (tRNAs) are small non-coding RNAs with lengths of approximately 70–100 nt. They are directly involved in protein synthesis by carrying amino acids to the ribosome.
Akio Kanai
doaj   +3 more sources

Extracellular tRNAs and tRNA-derived fragments [PDF]

open access: yesRNA Biology, 2020
Fragmentation of tRNAs generates a family of small RNAs collectively known as tRNA-derived fragments. These fragments vary in sequence and size but have been shown to regulate many processes involved in cell homoeostasis and adaptations to stress. Additionally, the field of extracellular RNAs (exRNAs) is rapidly growing because exRNAs are a promising ...
Juan Pablo Tosar, Alfonso Cayota
openaire   +2 more sources

Quantitative analysis of tRNA abundance and modifications by nanopore RNA sequencing

open access: yesNature Biotechnology, 2023
Transfer RNAs (tRNAs) play a central role in protein translation. Studying them has been difficult in part because a simple method to simultaneously quantify their abundance and chemical modifications is lacking.
M. Lucas   +8 more
semanticscholar   +1 more source

The tRNA identity landscape for aminoacylation and beyond

open access: yesNucleic Acids Research, 2023
tRNAs are key partners in ribosome-dependent protein synthesis. This process is highly dependent on the fidelity of tRNA aminoacylation by aminoacyl-tRNA synthetases and relies primarily on sets of identities within tRNA molecules composed of ...
R. Giegé, G. Eriani
semanticscholar   +1 more source

N7-methylguanosine tRNA modification promotes esophageal squamous cell carcinoma tumorigenesis via the RPTOR/ULK1/autophagy axis

open access: yesNature Communications, 2022
Mis-regulated RNA modifications promote the processing and translation of oncogenic mRNAs to facilitate cancer progression, while the molecular mechanisms remain unclear. Here we reveal that tRNA m7G methyltransferase complex proteins METTL1 and WDR4 are
Hui Han   +18 more
semanticscholar   +1 more source

METTL1 promotes hepatocarcinogenesis via m7G tRNA modification‐dependent translation control

open access: yesClinical and Translational Medicine, 2021
Background N7‐methylguanosine (m7G) modification is one of the most common transfer RNA (tRNA) modifications in humans. The precise function and molecular mechanism of m7G tRNA modification in hepatocellular carcinoma (HCC) remain poorly understood ...
Zhi-hang Chen   +14 more
semanticscholar   +1 more source

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