TY - JOUR A1 - Richter, Christian A1 - Kovacs, Helena A1 - Buck, Janina A1 - Wacker, Anna A1 - Fürtig, Boris A1 - Bermel, Wolfgang A1 - Schwalbe, Harald T1 - 13C-direct detected NMR experiments for the sequential J-based resonance assignment of RNA oligonucleotides T2 - Journal of biomolecular NMR N2 - We present here a set of 13C-direct detected NMR experiments to facilitate the resonance assignment of RNA oligonucleotides. Three experiments have been developed: (1) the (H)CC-TOCSY-experiment utilizing a virtual decoupling scheme to assign the intraresidual ribose 13C-spins, (2) the (H)CPC-experiment that correlates each phosphorus with the C40 nuclei of adjacent nucleotides via J(C,P) couplings and (3) the (H)CPC-CCH-TOCSY-experiment that correlates the phosphorus nuclei with the respective C10,H10 ribose signals. The experiments were applied to two RNA hairpin structures. The current set of 13C-direct detected experiments allows direct and unambiguous assignment of the majority of the hetero nuclei and the identification of the individual ribose moieties following their sequential assignment. Thus, 13C-direct detected NMR methods constitute useful complements to the conventional 1H-detected approach for the resonance assignment of oligonucleotides that is often hindered by the limited chemical shift dispersion. The developed methods can also be applied to large deuterated RNAs. Keywords: NMR spectroscopy , Direct carbon , detection , RNA KW - NMR spectroscopy KW - Direct carbon KW - detection KW - RNA Y1 - 2010 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/20243 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-85015 SN - 0925-2738 SN - 1573-5001 N1 - Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. VL - 47 IS - 4 SP - 259 EP - 269 PB - Springer CY - Dordrecht ER -