The 2-thiouridine (S2U) unit in the RNA strand is predominantly desulfured with H(2)O(2) to 4-pyrimidinone nucleoside (H2U). The resulting H2U-RNA exhibits significantly lower binding affinity to its complementary strand and in certain conditions undergoes strand scission. These results may explain the tRNA loss of biological function in oxidative stress conditions.

Download full-text PDF

Source
http://dx.doi.org/10.1039/c1cc10973aDOI Listing

Publication Analysis

Top Keywords

unit rna
8
rna strand
8
strand desulfured
8
4-pyrimidinone nucleoside
8
oxidative stress
8
stress conditions
8
2-thiouridine unit
4
strand
4
desulfured 4-pyrimidinone
4
nucleoside vitro
4

Similar Publications

Background: Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) encompasses a spectrum of histological conditions ranging from simple steatosis to fibrosing steatohepatitis, and is a risk factor for cardiovascular diseases (CVD). While oxidised apolipoproteins A and B have been linked to obesity and CVD, the association between other oxidised apolipoproteins and MASLD is yet to be established. To fill this gap, we characterised the circulating serum peptidome of patients with MASLD.

View Article and Find Full Text PDF

Cardiomyocyte-specific long noncoding RNA Trdn-as induces mitochondrial calcium overload by promoting the mA modification of calsequestrin 2 in diabetic cardiomyopathy.

Front Med

January 2025

Department of Pharmacology (SKLFZCD, State Key Laboratory-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin, 150081, China.

Diabetic cardiomyopathy (DCM) is a medical condition characterized by cardiac remodeling and dysfunction in individuals with diabetes mellitus. Sarcoplasmic reticulum (SR) and mitochondrial Ca overload in cardiomyocytes have been recognized as biological hallmarks in DCM; however, the specific factors underlying these abnormalities remain largely unknown. In this study, we aimed to investigate the role of a cardiac-specific long noncoding RNA, D830005E20Rik (Trdn-as), in DCM.

View Article and Find Full Text PDF

Aims: To assess the utility of reanalysing GCK variants of uncertain significance (VUS) as an intervention to improve the detection of monogenic diabetes.

Methods: We examined GCK VUS in a local cohort of individuals with suspected monogenic diabetes and re-curated each variant against the recent ClinGen GCK-specific variant classification guidelines.

Results: Variant reanalysis achieved a new 'likely pathogenic' classification (i.

View Article and Find Full Text PDF

T cell activation is accompanied by extensive changes in epigenome. However, the high-ordered chromatin organization underpinning CD8 T cell activation is not fully known. Here, we show extensive changes in the three-dimensional genome during CD8 T cell activation, associated with changes in gene transcription.

View Article and Find Full Text PDF

Objective: To discover microRNA (miRNA)-RNA transcript interactions dysregulated in brains from persons with HIV-associated neurocognitive disorder (HAND), we investigated RNA expression using machine learning tools.

Design: Brain-derived host RNA transcript and miRNA expression was examined from persons with or without HAND using bioinformatics platforms.

Methods: By combining next generation sequencing, droplet digital (dd)PCR quantitation of HIV-1 genomes, with bioinformatics and statistical tools, we investigated differential RNA expression in frontal cortex from persons without HIV (HIV[-]), with HIV without brain disease (HIV[+]), with HIV-associated neurocognitive disorder (HAND), or HAND with encephalitis (HIVE).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!