Glucarate dehydratase converts D-glucarate (and L-idarate, a stereoisomer) to 5-dehydro-4-deoxyglucarate which is subsequently acted on by GarL, tartronate semialdehyde reductase and glycerate kinase (GenProp0716). The E. coli enzyme has been well-characterized.
Jiyao W et al.(2023). "The conserved domain database in 2023.",