ArticleAnalytica chimica acta2018
Improving RNA modification mapping sequence coverage by LC-MS through a nonspecific RNase U2-E49A mutant.
Article in Analytica chimica acta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 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
9 citing papers in PubMed, 20 citations in OpenAlex.
- Human 28S rRNA analysed by state-of-the-art oligonucleotide mass spectrometry: benchmarking current capabilities and a call to action for MS-Seq.bioRxiv : the preprint server for biology · 2026Article
- Epitranscriptomic modifications in embryonic development: insights into natural and ART-induced mechanisms and implications.Human reproduction update · 2026Review
- Analysis of RNA and Its Modifications.Annual review of analytical chemistry (Palo Alto, Calif.) · 2024Review
- Review
- Locating chemical modifications in RNA sequences through ribonucleases and LC-MS based analysis.Methods in enzymology · 2021Article
- Unraveling the RNA modification code with mass spectrometry.Molecular omics · 2020Article
- Improved RNA modification mapping of cellular non-coding RNAs using C- and U-specific RNases.The Analyst · 2020Article
- tRNA Metabolism and Neurodevelopmental Disorders.Annual review of genomics and human genetics · 2019Review
- Detection of ribonucleoside modifications by liquid chromatography coupled with mass spectrometry.Biochimica et biophysica acta. Gene regulatory mechanisms · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
We report the identification and use of a mutant of the purine selective ribonuclease RNase U2 that randomly cleaves RNA in a manner that is directly compatible with RNA modification mapping by mass spectrometry. A number of RNase U2 mutants were generated using site-saturation mutagenesis. The enzyme activity and specificity were tested using oligonucleotide substrates, which revealed an RNase U2 E49A mutant with limited specificity and a tendency to undercut RNA. Using this mutant, RNA digestion conditions were optimized to yield long, overlapping digestion products, which improve sequence coverage in RNA modification mapping experiments. The analytical utility of this mutant was demonstrated by liquid chromatography tandem mass spectrometry (LC-MS/MS) mapping of several modified RNAs where 100% sequence coverage could be obtained using only a single enzymatic digestion. This new mutant facilitates more accurate and efficient RNA modification mapping than traditional highly base-specific RNases that are currently used.
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.