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. Author manuscript; available in PMC: 2013 Nov 17.
Published in final edited form as: Bioorg Med Chem. 2007 Aug 24;15(23):10.1016/j.bmc.2007.08.029. doi: 10.1016/j.bmc.2007.08.029

Scheme 1.

Scheme 1

a a E(NAD) represents the NAD+ form of SAHH; E-I(NAD) represents the complex of ribavirin bound to the NAD+ form of SAHH; E’I’(NADH) represents the complex of the oxidized ribavirin bound to the NADH form of SAHH; KI represents the equilibrium dissociation constant { KI = [E(NAD)][I]/[E-I(NAD)]}.