ArticleJournal of molecular biology2010
Combination of the loss of cmnm5U34 with the lack of s2U34 modifications of tRNALys, tRNAGlu, and tRNAGln altered mitochondrial biogenesis and respiration.
Article in Journal of molecular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 64 citations in OpenAlex.
- Synthesis and Hybridization Properties of RNA Oligomers Containing Biologically Relevant 5-Aminomethyl-2-thiouridines (xnmCurrent medicinal chemistry · 2026Article
- Primate-specific adaptation of Ku protects transcriptomic integrity by suppressing Alu-mediated alternative splicing.bioRxiv : the preprint server for biology · 2025Article
- Pan-cancer analysis identifies tRNA modification enzyme CTU2 as a novel tumor biomarker and its role in immune microenvironment.Frontiers in immunology · 2025Article
- Insights into the Mechanism of Installation of 5-Carboxymethylaminomethyl Uridine Hypermodification by tRNA-Modifying Enzymes MnmE and MnmG.Journal of the American Chemical Society · 2023Article
- Modopathies Caused by Mutations in Genes Encoding for Mitochondrial RNA Modifying Enzymes: Molecular Mechanisms and Yeast Disease Models.International journal of molecular sciences · 2023Review
- A novel splice variant of Elp3/Kat9 regulates mitochondrial tRNA modification and function.Scientific reports · 2022Article
- Expression pattern of mitochondrial respiratory chain enzymes in skeletal muscle of patients with mitochondrial myopathy associated with the homoplasmic m.14674T>C variant.Brain pathology (Zurich, Switzerland) · 2022Article
- The first apicoplast tRNA thiouridylase plays a vital role in the growth ofFrontiers in cellular and infection microbiology · 2022Article
- Ablation of Mto1 in zebrafish exhibited hypertrophic cardiomyopathy manifested by mitochondrion RNA maturation deficiency.Nucleic acids research · 2021Article
- The human tRNA taurine modification enzyme GTPBP3 is an active GTPase linked to mitochondrial diseases.Nucleic acids research · 2021Article
- A deafness-associated tRNA mutation caused pleiotropic effects on the m1G37 modification, processing, stability and aminoacylation of tRNAIle and mitochondrial translation.Nucleic acids research · 2021Article
- Naturally occurring modified ribonucleosides.Wiley interdisciplinary reviews. RNA · 2020Review
- Deletion of Gtpbp3 in zebrafish revealed the hypertrophic cardiomyopathy manifested by aberrant mitochondrial tRNA metabolism.Nucleic acids research · 2019Article
- Deletion of Mtu1 (Trmu) in zebrafish revealed the essential role of tRNA modification in mitochondrial biogenesis and hearing function.Nucleic acids research · 2018Article
- Defects in the mitochondrial-tRNA modification enzymes MTO1 and GTPBP3 promote different metabolic reprogramming through a HIF-PPARγ-UCP2-AMPK axis.Scientific reports · 2018Article
- The genotypic and phenotypic spectrum of MTO1 deficiency.Molecular genetics and metabolism · 2018Article
- Article
- Biosynthesis of Sulfur-Containing tRNA Modifications: A Comparison of Bacterial, Archaeal, and Eukaryotic Pathways.Biomolecules · 2017Review
- Biochemical Evidence for a Nuclear Modifier Allele (A10S) in TRMU (Methylaminomethyl-2-thiouridylate-methyltransferase) Related to Mitochondrial tRNA Modification in the Phenotypic Manifestation of Deafness-associated 12S rRNA Mutation.The Journal of biological chemistry · 2017Article
- Nucleoside modifications in the regulation of gene expression: focus on tRNA.Cellular and molecular life sciences : CMLS · 2016Review
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3 authors at 2 institutions in 2 countries.
Funding
Abstract
Yeast Saccharomyces cerevisiae MTO2, MTO1, and MSS1 genes encoded highly conserved tRNA modifying enzymes for the biosynthesis of carboxymethylaminomethyl (cmnm)(5)s(2)U(34) in mitochondrial tRNA(Lys), tRNA(Glu), and tRNA(Gln). In fact, Mto1p and Mss1p are involved in the biosynthesis of the cmnm(5) group (cmnm(5)U(34)), while Mto2p is responsible for the 2-thiouridylation (s(2)U(34)) of these tRNAs. Previous studies showed that partial modifications at U(34) in mitochondrial tRNA enabled mto1, mto2, and mss1 strains to respire. In this report, we investigated the functional interaction between MTO2, MTO1, and MSS1 genes by using the mto2, mto1, and mss1 single, double, and triple mutants. Strikingly, the deletion of MTO2 was synthetically lethal with a mutation of MSS1 or deletion of MTO1 on medium containing glycerol but not on medium containing glucose. Interestingly, there were no detectable levels of nine tRNAs including tRNA(Lys), tRNA(Glu), and tRNA(Gln) in mto2/mss1, mto2/mto1, and mto2/mto1/mss1 strains. Furthermore, mto2/mss1, mto2/mto1, and mto2/mto1/mss1 mutants exhibited extremely low levels of COX1 and CYTB mRNA and 15S and 21S rRNA as well as the complete loss of mitochondrial protein synthesis. The synthetic enhancement combinations likely resulted from the completely abolished modification at U(34) of tRNA(Lys), tRNA(Glu), and tRNA(Gln), caused by the combination of eliminating the 2-thiouridylation by the mto2 mutation with the absence of the cmnm(5)U(34) by the mto1 or mss1 mutation. The complete loss of modifications at U(34) of tRNAs altered mitochondrial RNA metabolisms, causing a degradation of mitochondrial tRNA, mRNA, and rRNAs. As a result, failures in mitochondrial RNA metabolisms were responsible for the complete loss of mitochondrial translation. Consequently, defects in mitochondrial protein synthesis caused the instability of their mitochondrial genomes, thus producing the respiratory-deficient phenotypes. Therefore, our findings demonstrated a critical role of modifications at U(34) of tRNA(Lys), tRNA(Glu), and tRNA(Gln) in maintenance of mitochondrial genome, mitochondrial RNA stability, translation, and respiratory function.
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