Quantification of Modified Nucleosides in the Context of NAIL-MS
Recent progress in epitranscriptome research shows an interplay of enzymes modifying RNAs and enzymes dedicated for RNA modification removal. One of the main techniques to study RNA modifications is liquid chromatography-coupled tandem mass spectrometry (LC-MS/MS) as it allows sensitive detection of modified nucleosides. Although RNA modifications have been found to be highly dynamic, state-of-the-art LC-MS/MS analysis only gives a static view on modifications and does not allow the investigation of temporal modification placement. Here, we present the principles of nucleic acid isotope labeling coupled with mass spectrometry, termed NAIL-MS, which overcomes these limitations by stable isotope labeling in human cell culture and gives detailed instructions on how to label cells and process samples in order to get reliable results. For absolute quantification in the context of NAIL-MS, we explain the production of internal standards in detail. Furthermore, we outline the requirements for stable isotope labeling in cell culture and all subsequent steps to receive nucleoside mixtures of native RNA for NAIL-MS analysis. In the final section of this chapter, we describe the distinctive features of NAIL-MS data analysis with a special focus toward absolute quantification of modified nucleosides.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:2298 |
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| Enthalten in: |
Methods in molecular biology (Clifton, N.J.) - 2298(2021) vom: 03., Seite 279-306 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Heiss, Matthias [VerfasserIn] |
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| Links: |
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| Themen: |
63231-63-0 |
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| Anmerkungen: |
Date Completed 22.06.2021 Date Revised 22.06.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.1007/978-1-0716-1374-0_18 |
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| funding: |
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NLM326335781 |
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| 520 | |a Recent progress in epitranscriptome research shows an interplay of enzymes modifying RNAs and enzymes dedicated for RNA modification removal. One of the main techniques to study RNA modifications is liquid chromatography-coupled tandem mass spectrometry (LC-MS/MS) as it allows sensitive detection of modified nucleosides. Although RNA modifications have been found to be highly dynamic, state-of-the-art LC-MS/MS analysis only gives a static view on modifications and does not allow the investigation of temporal modification placement. Here, we present the principles of nucleic acid isotope labeling coupled with mass spectrometry, termed NAIL-MS, which overcomes these limitations by stable isotope labeling in human cell culture and gives detailed instructions on how to label cells and process samples in order to get reliable results. For absolute quantification in the context of NAIL-MS, we explain the production of internal standards in detail. Furthermore, we outline the requirements for stable isotope labeling in cell culture and all subsequent steps to receive nucleoside mixtures of native RNA for NAIL-MS analysis. In the final section of this chapter, we describe the distinctive features of NAIL-MS data analysis with a special focus toward absolute quantification of modified nucleosides | ||
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