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  • Title: Structural analysis of 11C, 15N labeled adenosine by solid-state NMR.
    Author: Fujiwara T, Sugase K, Kainosyo M, Ono A, Akutsu H.
    Journal: Nucleic Acids Symp Ser; 1995; (34):193-4. PubMed ID: 8841618.
    Abstract:
    Two-dimensional solid-state 13C homonuclear and 13C-15N heteronuclear NMR experiments for dipolar correlations between isotropic chemical shifts were performed for adenosine uniformly labeled with 13C and 15N. All the 13C and 15N signals were assigned from the dipolar couplings. In the mixing periods of the experiments, 13C-13C and 13C-15N dipolar interactions under magic angle spinning conditions were recovered by USEME and TEDOR pulses respectively, which are rf multipulse sequences applied synchronously with sample spinning. Dipolar mixing periods were set to times at which only spin pairs connected with direct covalent bonds give rise to cross peaks in the 2-D spectra. Thus, these high resolution spectra unveil a network of 13C and 15N spins connected with covalent bonds in solids. Structural information obtained for adenosine by the 2-D solid-state NMR will be discussed.
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