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. Author manuscript; available in PMC: 2011 Oct 21.
Published in final edited form as: J Am Chem Soc. 2011 Sep 8;133(39):15578–15592. doi: 10.1021/ja204650q

Table 3.

Affinites of c-GMP-AMP and the deoxy derivatives for the C92U mutant class I riboswitch.

Analog Kd (nM) Fold Loss ΔΔGbind (kcal/mol)
c-GMP-AMP 19 ± 1.7 - -
c-G-dAMP 200 ± 21 11 1.4
c-dG-AMP 1200 ± 110 64 2.5