Table 3. Radius of gyration of Gsw^apt and Gsw^{loop [a]}.

Gsw variant	0 Mg2+ [b]	12 Mg2+ [b]	20 Mg2+ [b]	Crystal structure [c]
Gswapt	17.2 ± 0.1	16.3 ± 0.1	16.2 ± 0.1	16.1 [d]
Gswloop	17.4 ± 0.1	16.4 ± 0.1	16.4 ± 0.1	16.3 [e]

^[a] In Å; given is the mean ± SEM calculated over three trajectories each. The radius of gyration was calculated omitting the P1 region.

^[b] Number of Mg²⁺ ions per RNA molecule.

^[c] The crystal structures are ligand-bound.

^[d] Calculated for PDB ID 4FE5 [17]

^[e] Calculated for PDB ID 3RKF [18]