ArticleChembiochem : a European journal of chemical biology2020
Lanthanide Tagging of Oligonucleotides to Nucleobase for Paramagnetic NMR.
Article in Chembiochem : a European journal of chemical biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Solution Structure of a Lanthanide-binding DNA Aptamer Determined Using High Quality pseudocontact shift restraints.Chemistry (Weinheim an der Bergstrasse, Germany) · 2022Article
- Synthesis of lanthanide tag and experimental studies on paramagnetically induced residual dipolar couplings.BMC chemistry · 2022Article
- Paramagnetic Chemical Probes for Studying Biological Macromolecules.Chemical reviews · 2022Review
- Lanthanide Tagging of Oligonucleotides to Nucleobase for Paramagnetic NMR.Chembiochem : a European journal of chemical biology · 2020Article
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7 authors.
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Abstract
Although lanthanide tags, which have large anisotropic magnetic susceptibilities, have already been introduced to enrich NMR parameters by long-range pseudoconact shifts (PCSs) and residual dipolar couplings (RDCs) of proteins, their application to nucleotides has so far been limited to one previous report, due to the high affinities of lanthanides for the phosphodiester backbone of nucleotides and difficult organic synthesis. Herein, we report successful attachment of a lanthanide tag to a chemically synthesized oligonucleotide via a disulfide bond. NMR experiments reveal PCSs of up to 1 ppm and H-H RDCs of up to 8 Hz at 950 MHz. Although weaker magnetic alignment was achieved than with proteins, the paramagnetic data could be fitted to the known structure of the DNA, taking the mobility of the tag into account. While further rigidification of the tag is desirable, this tag could also be used to measure heteronuclear RDCs of
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