ArticleRNA (New York, N.Y.)2010
YibK is the 2'-O-methyltransferase TrmL that modifies the wobble nucleotide in Escherichia coli tRNA(Leu) isoacceptors.
Article in RNA (New York, N.Y.), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
55 citing papers in PubMed, 77 citations in OpenAlex.
- Compendium of RNA modifications for bacterial stress adaptation.Microbiology and molecular biology reviews : MMBR · 2026Review
- Quantitative RNA modification mapping by mass spectrometry with isobaric tags and nucleobase fragment analysis.Nature communications · 2026Article
- Probing the function ofMicrobiology spectrum · 2026Article
- The Rare RNA Methylations m²G, Cm, m⁵U and ms²i⁶A: Roles in Disease Pathogenesis and Emerging Therapeutic Implications.International journal of medical sciences · 2026Review
- A transfer RNA methyltransferase with an unusual domain composition catalyzes 2'-O-methylation at position 6 in tRNA.Nucleic acids research · 2025Article
- Evolutionary Origins and Functional Diversification of 2'-O-Methyltransferases: Insights from Phylogenetic and Structural Analysis.International journal of molecular sciences · 2025Article
- Combining Nanopore direct RNA sequencing with genetics and mass spectrometry for analysis of T-loop base modifications across 42 yeast tRNA isoacceptors.Nucleic acids research · 2024Article
- RNA modifying enzymes shape tRNA biogenesis and function.The Journal of biological chemistry · 2024Review
- Engineering tRNAs for the Ribosomal Translation of Non-proteinogenic Monomers.Chemical reviews · 2024Review
- Alternate routes to mnmJournal of bacteriology · 2024Article
- Complicated target recognition by archaeal box C/D guide RNAs.Science China. Life sciences · 2024Article
- New layers of regulation of the general stress response sigma factor RpoS.Frontiers in microbiology · 2024Review
- Mapping the tRNA modification landscape ofFrontiers in microbiology · 2024Article
- Escherichia coli tRNA (Gm18) methyltransferase (TrmH) requires the correct localization of its methylation site (G18) in the D-loop for efficient methylation.Journal of biochemistry · 2023Article
- 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
- Different modification pathways for m1A58 incorporation in yeast elongator and initiator tRNAs.Nucleic acids research · 2023Article
- Review
- Tied up in knots: Untangling substrate recognition by the SPOUT methyltransferases.The Journal of biological chemistry · 2022Review
- Epitranscriptomic dynamics in brain development and disease.Molecular psychiatry · 2022Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transfer RNAs are the most densely modified nucleic acid molecules in living cells. In Escherichia coli, more than 30 nucleoside modifications have been characterized, ranging from methylations and pseudouridylations to more complex additions that require multiple enzymatic steps. Most of the modifying enzymes have been identified, although a few notable exceptions include the 2'-O-methyltransferase(s) that methylate the ribose at the nucleotide 34 wobble position in the two leucyl isoacceptors tRNA(Leu)(CmAA) and tRNA(Leu)(cmnm5UmAA). Here, we have used a comparative genomics approach to uncover candidate E. coli genes for the missing enzyme(s). Transfer RNAs from null mutants for candidate genes were analyzed by mass spectrometry and revealed that inactivation of yibK leads to loss of 2'-O-methylation at position 34 in both tRNA(Leu)(CmAA) and tRNA(Leu)(cmnm5UmAA). Loss of YibK methylation reduces the efficiency of codon-wobble base interaction, as demonstrated in an amber suppressor supP system. Inactivation of yibK had no detectable effect on steady-state growth rate, although a distinct disadvantage was noted in multiple-round, mixed-population growth experiments, suggesting that the ability to recover from the stationary phase was impaired. Methylation is restored in vivo by complementing with a recombinant copy of yibK. Despite being one of the smallest characterized α/β knot proteins, YibK independently catalyzes the methyl transfer from S-adenosyl-L-methionine to the 2'-OH of the wobble nucleotide; YibK recognition of this target requires a pyridine at position 34 and N⁶-(isopentenyl)-2-methylthioadenosine at position 37. YibK is one of the last remaining E. coli tRNA modification enzymes to be identified and is now renamed TrmL.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.