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. Author manuscript; available in PMC: 2022 Aug 4.
Published in final edited form as: Cell Rep Phys Sci. 2022 Jul 11;3(7):100971. doi: 10.1016/j.xcrp.2022.100971

Table 1.

Structural parameters of RNA constructs from experiments and simulations

6SVS crystal27 ST/LT-DPX [Na+] ST/LT-TPX [Na+] ST/LT-TPX [Mg2+]
Shift (Å) − 0.27 0.03±0.11 0.05±0.15 0.10±0.14
Slide (Å) − 2.32 − 1.52±0.13 − 1.82±0.17 − 1.87±0.16
Rise (Å) 3.17 3.33±0.05 3.41 +0.09 3.43±0.10
Tilt (°) − 2.57 0.30±0.80 0.46±1.18 − 0.11±1.00
Roll (°) 3.40 4.87±1.33 2.32±1.33 0.83±1.47
Twist (°) 29.76 30.99±0.66 29.30±0.94 31.06±1.07
x-displacement (Å) − 5.14 − 3.62±0.32 − 3.82±0.90 − 3.60±0.39
y-displacement (Å) 0.28 0.01±0.29 0.18±0.66 − 0.04±0.44
Helical rise (Å) 2.79 2.96±0.11 3.09±0.15 3.26±0.17
Inclination (°) 7.18 8.80±2.48 4.23±3.02 1.12±3.00
Helical twist (°) 30.49 32.27±0.59 30.79±1.11 32.24±1.10
Propeller (°) − 6.06 − 12.55±2.47 − 5.43±3.48 − 4.75±2.96
P … P (Å) 6.32 6.14±0.05 6.19±0.08 6.25±0.05
Major groove (Å) 13.27 9.94±0.89 13.69±0.75 13.99±0.95
Glycosidic torsional angle anti anti anti anti
Sugar pucker C3′-endo C3′-endo C3′-endo C3′-endo