Table 1.

Summary of exchange parameters obtained from ¹H CPMG relaxation dispersion profiles.

	Residue	k ex [s−1][a]	p B [%][b]	|Δ$\bar{\omega }$ |[ppm][c]
A‐site RNA 1 a/b 285 K	C7 C9 A10 A92 A93 G94 U95	1880±140	4.06±1.28	0.24±0.07 0.15±0.08 0.22±0.05 0.14±0.07 0.24±0.05 0.34±0.07 0.29±0.06
cTAR DNA 2 a/b 298 K	G4 A5 C19 G20 A21 C22 C23	525±59	1.0±0.1	0.25±0.02 0.49±0.03 0.22±0.01 0.20±0.02 0.56±0.03 0.34±0.02 0.24±0.01

[a] Exchange rate constant and [b] population from global fit of relaxation dispersion data of residues with significant relaxation dispersion at all magnetic fields. [c] Residue‐specific chemical shift difference between ground and excited state. Details on the fitting procedure are given in the Supporting Information.