Single-molecule FRET reveals a cooperative effect of two methyl group modifications in the folding of human mitochondrial tRNALys
Using a combination of advanced RNA synthesis techniques and single molecule spectroscopy, the deconvolution of individual contributions of posttranscriptional modifications to the overall folding and stabilization of human mitochondrial tRNALys is described. An unexpected destabilizing effect of tw...
Gespeichert in:
| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 28, 2011
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| In: |
Chemistry & biology
Year: 2011, Jahrgang: 18, Heft: 7, Pages: 928-936 |
| ISSN: | 1879-1301 |
| DOI: | 10.1016/j.chembiol.2011.03.016 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.chembiol.2011.03.016 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S1074552111001736 
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| Verfasserangaben: | Andrei Yu Kobitski, Martin Hengesbach, Salifu Seidu-Larry, Kirsten Dammertz, Christine S. Chow, Arthur van Aerschot, G. Ulrich Nienhaus, and Mark Helm |
MARC
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| 520 | |a Using a combination of advanced RNA synthesis techniques and single molecule spectroscopy, the deconvolution of individual contributions of posttranscriptional modifications to the overall folding and stabilization of human mitochondrial tRNALys is described. An unexpected destabilizing effect of two pseudouridines on the native tRNA folding was evidenced. Furthermore, the presence of m2G10 alone does not facilitate the folding of tRNALys, but a stabilization of the biologically functional cloverleaf shape in conjunction with the principal stabilizing component m1A9 exceeds the contribution of m1A alone. This constitutes an unprecedented cooperative effect of two nucleotide modifications in the context of a naturally occurring RNA, which may be of general importance for tRNA structure and help understanding several recently described decay pathways for hypomodified tRNAs. | ||
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