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Borland, K.* ; Diesend, J.* ; Ito-Kureha, T.* ; Heissmeyer, V. ; Hammann, C.* ; Buck, A.H.* ; Michalakis, S.* ; Kellner, S.*

Production and application of stable isotope-labeled internal standards for RNA modification analysis.

Genes 10:26 (2019)
Verlagsversion Forschungsdaten DOI
Open Access Gold
Creative Commons Lizenzvertrag
Post-transcriptional RNA modifications have been found to be present in a wide variety of organisms and in different types of RNA. Nucleoside modifications are interesting due to their already known roles in translation fidelity, enzyme recognition, disease progression, and RNA stability. In addition, the abundance of modified nucleosides fluctuates based on growth phase, external stress, or possibly other factors not yet explored. With modifications ever changing, a method to determine absolute quantities for multiple nucleoside modifications is required. Here, we report metabolic isotope labeling to produce isotopically labeled internal standards in bacteria and yeast. These can be used for the quantification of 26 different modified nucleosides. We explain in detail how these internal standards are produced and show their mass spectrometric characterization. We apply our internal standards and quantify the modification content of transfer RNA (tRNA) from bacteria and various eukaryotes. We can show that the origin of the internal standard has no impact on the quantification result. Furthermore, we use our internal standard for the quantification of modified nucleosides in mouse tissue messenger RNA (mRNA), where we find different modification profiles in liver and brain tissue.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Absolute Quantification Of Rna Modifications ; Isotope Labeling ; Mass Spectrometry ; Transfer Rna ; Mrna; Mass-spectrometry; Methylation; Stress; 4-thiouridine; Dna
ISSN (print) / ISBN 2073-4425
e-ISSN 2073-4425
Zeitschrift Genes
Quellenangaben Band: 10, Heft: 1, Seiten: , Artikelnummer: 26 Supplement: ,
Verlag MDPI
Verlagsort St Alban-anlage 66, Ch-4052 Basel, Switzerland
Begutachtungsstatus Peer reviewed