NOG is an analogue of alpha ketoglutarate and has been found to be an inhibitor of reactions involving alpha ketoglutarate such as xanthine hydroxylase and alpha ketoglutarate dioxygenase.
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2) Kalliri, E., P. K. Grzyska, et al. (2005). “Kinetic and spectroscopic investigation of CoII, NiII, and N-oxalylglycine inhibition of the FeII/alpha-ketoglutarate dioxygenase, TauD.” Biochem Biophys Res Commun 338(1): 191-7.