Communications Biology (Nov 2021)
Roles of metal ions in the selective inhibition of oncogenic variants of isocitrate dehydrogenase 1
Abstract
Liu et al investigate the effects of divalent metal ions on catalysis and inhibition of the enzyme isocitrate dehydrogenase (IDH) and its cancer-linked variant R132H. They further identify the substrates for IDH as complexes with Mg2+ and show that allosteric inhibitors work by weakening Mg2+ binding of R132H, providing mechanistic insights into the basis for selective R132H IDH1 inhibition.