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EXSY (NOESY) spectrum of 1-13C N-Ac-d-Ala-d-Ala-saturated eremomycin at 278 K, mixing time 100 ms. The w2 amide group signals belonging to tetramer (T2a, T2b) and octamer (O2a, O2b) are separated on the diagonal, but no off-diagonal exchange peaks are visible between tetramer and octamer states. However, the intramolecular NOESY peaks are observable.
