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. Author manuscript; available in PMC: 2011 Jul 29.
Published in final edited form as: Biochemistry. 2010 Aug 31;49(34):7351–7359. doi: 10.1021/bi100671e

Table 1.

Binding affinities for binding pocket mutants.

RNA Kd (nM) ΔΔGbind (kcal/mol)
Vc2 110 (Wild-type) 0.011 0

G20A 0.21 ± 0.067 1.8
G20C 3.9 ± 0.18 3.5
G20U 330 ± 150 6.1

C92A 97 ± 15 5.4
C92G 21000 ± 5800 8.6
C92Ua 15 ± 1.1 4.3

A47C 8500 ± 3000 8.0
A47G 4200 ± 1700 7.6
A47U 3500 ± 520 7.5
a

All values reported for C92U were reported previously (21).