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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: J Biomol NMR. 2013 Aug 21;57(2):10.1007/s10858-013-9766-2. doi: 10.1007/s10858-013-9766-2

Fig. 1.

Fig. 1

Pulse sequences O-ssNMR and MAS-ssNMR experiments.

(A) SE-PISEMAI-HETCOR, (B) 2D-MEIOSIS-(DARR/N(CA)CX/CA(N)CO/NCO) with the following phases: Φ; 1={y y y y −y −y −y −y}, Φ2={x x −x −x}2, Φ3={y −y y −y}2, Φ4={y y −y −y}, Φrec={x −x −x x −x x x −x} and (C) 3D-DUMAS(CANCO/NCACX) with the following phases: Φ1 = (y, −y)4, Φ:2 = (y, y, y, y, −y, −y, −y, −y), Φ3 = (x, x, −x, −x)2, Φrec = (x, −x, −x, x, −x, x, x, −x). For the pulse sequence in (B), the 13C carrier frequency is placed in the center of the spectral window for DARR (100ppm). SPECIFIC-CP is achieved by a phase modulated pulse on 13C that effectively changes the offset to 13Cα (64ppm) for the first transfer and to C′ (178ppm) for the second transfer.