label: 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2 => isochorismate + 2-oxoglutarate + H(+)
label_lc: 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + co2 => isochorismate + 2-oxoglutarate + h(+)