Large RNAs are central to cellular functions, and yet characterizing such RNAs remains outside the reach of solution NMR. We present two labeling technologies based on [2-19F, 2-13C]-adenosine, which allow the incorporation of aromatic 19F-13C spin pairs. The labels when coupled with the powerful transverse relaxation optimized spectroscopy (TROSY) enable us to probe RNAs comprising up to 124 nucleotides. With our new [2-19F, 2-13C]-adenosine-phosphoramidite, all resonances of the human...
[NMR paper] Isotope Labels Combined with Solution NMR Spectroscopy Make Visible the Invisible Conformations of Small-to-Large RNAs
Isotope Labels Combined with Solution NMR Spectroscopy Make Visible the Invisible Conformations of Small-to-Large RNAs
RNA is central to the proper function of cellular processes important for life on earth and implicated in various medical dysfunctions. Yet, RNA structural biology lags significantly behind that of proteins, limiting mechanistic understanding of RNA chemical biology. Fortunately, solution NMR spectroscopy can probe the structural dynamics of RNA in solution at atomic resolution, opening the door to their functional understanding. However, NMR analysis of RNA, with only...
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[NMR paper] Methyl TROSY spectroscopy: A versatile NMR approach to study challenging biological systems.
Methyl TROSY spectroscopy: A versatile NMR approach to study challenging biological systems.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/https:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Methyl TROSY spectroscopy: A versatile NMR approach to study challenging biological systems.
Prog Nucl Magn Reson Spectrosc. 2020 Feb;116:56-84
Authors: Schütz S, Sprangers R
Abstract
A major goal in structural biology is to unravel how molecular machines function in detail. To that end,...
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03-07-2020 06:20 PM
Nitrogen-detected TROSY yields comparable sensitivity to proton-detected TROSY for non-deuterated, large proteins under physiological salt conditions
Nitrogen-detected TROSY yields comparable sensitivity to proton-detected TROSY for non-deuterated, large proteins under physiological salt conditions
Abstract
Direct detection of the TROSY component of proton-attached 15N nuclei (15N-detected TROSY) yields high quality spectra with high field magnets, by taking advantage of the slow 15N transverse relaxation. The slow transverse relaxation and narrow line width of the 15N-detected TROSY resonances are expected to compensate for the inherently low 15N sensitivity. However, the sensitivity of...
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01-23-2016 03:35 PM
19 F-labeling of the adenine H2-site to study large RNAs by NMR spectroscopy
19 F-labeling of the adenine H2-site to study large RNAs by NMR spectroscopy
Abstract
In comparison to proteins and protein complexes, the size of RNA amenable to NMR studies is limited despite the development of new isotopic labeling strategies including deuteration and ligation of differentially labeled RNAs. Due to the restricted chemical shift dispersion in only four different nucleotides spectral resolution remains limited in larger RNAs. Labeling RNAs with the NMR-active nucleus 19F has previously been introduced for small RNAs up to 40...
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[NMR paper] (19)F-labeling of the adenine H2-site to study large RNAs by NMR spectroscopy.
(19)F-labeling of the adenine H2-site to study large RNAs by NMR spectroscopy.
Related Articles (19)F-labeling of the adenine H2-site to study large RNAs by NMR spectroscopy.
J Biomol NMR. 2015 Dec 24;
Authors: Sochor F, Silvers R, Müller D, Richter C, Fürtig B, Schwalbe H
Abstract
In comparison to proteins and protein complexes, the size of RNA amenable to NMR studies is limited despite the development of new isotopic labeling strategies including deuteration and ligation of differentially labeled RNAs. Due to the restricted...
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[NMR paper] Combining NMR and EPR to Determine Structures of Large RNAs and Protein-RNA Complexes in Solution.
Combining NMR and EPR to Determine Structures of Large RNAs and Protein-RNA Complexes in Solution.
Related Articles Combining NMR and EPR to Determine Structures of Large RNAs and Protein-RNA Complexes in Solution.
Methods Enzymol. 2015;558:279-331
Authors: Duss O, Yulikov M, Allain FH, Jeschke G
Abstract
Although functional significance of large noncoding RNAs and their complexes with proteins is well recognized, structural information for this class of systems is very scarce. Their inherent flexibility causes problems in...
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TROSY NMR Spectroscopy of Large Soluble Proteins.
TROSY NMR Spectroscopy of Large Soluble Proteins.
TROSY NMR Spectroscopy of Large Soluble Proteins.
Top Curr Chem. 2011 Sep 17;
Authors: Xu Y, Matthews S
Abstract
Solution nuclear magnetic resonance spectroscopy is usually only used to study proteins with molecular weight not exceeding about 50 kDa. This size limit has been lifted significantly in recent years, thanks to the development of labelling methods and the application of transverse-relaxation optimized spectroscopy (TROSY). In particular, methyl-specific labelling and...
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[NMR paper] TROSY and CRINEPT: NMR with large molecular and supramolecular structures in solution
TROSY and CRINEPT: NMR with large molecular and supramolecular structures in solution.
Related Articles TROSY and CRINEPT: NMR with large molecular and supramolecular structures in solution.
Trends Biochem Sci. 2000 Oct;25(10):462-8
Authors: Riek R, Pervushin K, Wüthrich K
TROSY and CRINEPT are new techniques for solution NMR studies of molecular and supramolecular structures. They allow the collection of high-resolution spectra of structures with molecular weights >100 kDa, significantly extending the range of macromolecular systems that can...