Naturally occurring modified ribonucleosides

PJ McCown, A Ruszkowska, CN Kunkler… - Wiley …, 2020 - Wiley Online Library
The chemical identity of RNA molecules beyond the four standard ribonucleosides has
fascinated scientists since pseudouridine was characterized as the “fifth” ribonucleotide in …

Functions of bacterial tRNA modifications: from ubiquity to diversity

V de Crécy-Lagard, M Jaroch - Trends in Microbiology, 2021 - cell.com
Modified nucleotides in tRNA are critical components of the translation apparatus, but their
importance in the process of translational regulation had until recently been greatly …

Plant RNases T2, but not Dicer-like proteins, are major players of tRNA-derived fragments biogenesis

C Megel, G Hummel, S Lalande, E Ubrig… - Nucleic Acids …, 2019 - academic.oup.com
RNA fragments deriving from tRNAs (tRFs) exist in all branches of life and the repertoire of
their biological functions regularly increases. Paradoxically, their biogenesis remains …

Comprehensive classification of ABC ATPases and their functional radiation in nucleoprotein dynamics and biological conflict systems

A Krishnan, AM Burroughs, LM Iyer… - Nucleic acids …, 2020 - academic.oup.com
ABC ATPases form one of the largest clades of P-loop NTPase fold enzymes that catalyze
ATP-hydrolysis and utilize its free energy for a staggering range of functions from transport to …

[HTML][HTML] Emerging functions of tRNA modifications in mRNA translation and diseases

L Wang, S Lin - Journal of Genetics and Genomics, 2023 - Elsevier
Abstract tRNAs are essential modulators that recognize mRNA codons and bridge amino
acids for mRNA translation. The tRNAs are heavily modified, which are essential for forming …

A substrate binding model for the KEOPS tRNA modifying complex

J Beenstock, SM Ona, J Porat, S Orlicky… - Nature …, 2020 - nature.com
The KEOPS complex, which is conserved across archaea and eukaryotes, is composed of
four core subunits; Pcc1, Kae1, Bud32 and Cgi121. KEOPS is crucial for the fitness of all …

Structure and mechanism of a bacterial t6A biosynthesis system

A Luthra, W Swinehart, S Bayooz, P Phan… - Nucleic acids …, 2018 - academic.oup.com
Abstract The universal N (6)-threonylcarbamoyladenosine (t6A) modification at position 37
of ANN-decoding tRNAs is central to translational fidelity. In bacteria, t6A biosynthesis is …

Structural insights into the toxicity of type II ribosome inactivating proteins (RIPs): a molecular dynamics study

PK Madasu, T Chandran - Journal of Biomolecular Structure and …, 2024 - Taylor & Francis
Abstract Ribosome Inactivating Proteins (RIPs) act by irreversibly depurinating the 28S
rRNA ricin-sarcin loop (SRL) of the eukaryotic ribosome resulting in protein synthesis …

A versatile tRNA modification-sensitive northern blot method with enhanced performance

A Khalique, S Mattijssen, RJ Maraia - RNA, 2022 - rnajournal.cshlp.org
The 22 mitochondrial and∼ 45 cytosolic tRNAs in human cells contain several dozen
different post-transcriptional modified nucleotides such that each carries a unique …

Environmental Control of Queuosine Levels in Streptococcus mutans tRNAs

M Jaroch, K Savage, P Kuipers… - Molecular …, 2024 - Wiley Online Library
Queuosine (Q) is a modification of the wobble base in tRNAs that decode NA (C/U) codons.
It is ubiquitous in bacteria, including many pathogens. Streptococcus mutans is an early …