Table 1.

Acquisition parameters for the data presented in Figs. 3–7 and 11. $t_{1\text{max}}^{*}$: maximal evolution time for optimal resolution and sensitivity (1.2R₂). N*: total number of points corresponding to $t_{1\text{max}}^{*}$ with, in parentheses, corrections to account for scalar couplings. N: number of points adjusted to match time allocated. Ns: sampling schedule sizes. Number of scans: 4 (HNCO), 16(HNCA), 24(HN(CA)CO), and 48 (HN(CA)CB).

Coherence	$t_{1\text{max}}^{*}(\mathrm{m}\mathrm{s})$	N*	N	Experiment	Sampling factor (%)	Ns	Acquisition time
15N	125	400	400
13CO	29	100	100	HNCO/HN(CA)CO	3	1250	6 h 30/1 d 15 h 00
13Cα	155	1120(206)	256	HNCA	2	2000	2 d
13Cβ	155	2456(412)	256	HN(CA)CB	2	2000	6 d