. "Catalysis of the reaction: cis-aconitate + H2O = isocitrate." . . "aconitate hydratase activity" . "cis-aconitase activity" . "citrate hydro-lyase activity" . "citrate(isocitrate) hydro-lyase (cis-aconitate-forming)" . "citrate(isocitrate) hydro-lyase activity" . "isocitrate hydro-lyase (cis-aconitate-forming) activity" . . .