obsolete L-idonate 2-dehydrogenase activity https://github.com/geneontology/go-ontology/issues/9526 true This term was made obsolete because EC:1.1.1.128 was deleted: the reaction described is covered by EC:1.1.1.264. L-idonate dehydrogenase activity 5-ketogluconate 2-reductase activity L-idonate 2-dehydrogenase activity OBSOLETE. Catalysis of the reaction: L-idonate + NADP+ = 5-dehydro-D-gluconate + NADPH. reductase, 5-ketogluconate 5- (L-idonate-forming) 5-keto-D-gluconate 2-reductase activity 5-ketoglucono-idono-reductase activity 5KGR molecular_function L-idonate:NADP+ 2-oxidoreductase activity GO:0050027 L-idonate 5-dehydrogenase [NAD(P)+] activity