Aconitase
Aconitase is a name for citrate (isocitrate) hydro-LYASE (aconitate hydratase), which catalyzes the interconversion of citrate, cis-aconitate ((Z)-prop-1-ene-1,2,3-tri- carboxylate), and isocitrate. The active enzyme contains a catalytic [4fe-4s] cluster.