(3Z)-2-oxo-4-carboxy-3-hexenedioate + H2O => (2S)-2-hydroxy-4-oxobutane-1,2,4-tricarboxylate
(3z)-2-oxo-4-carboxy-3-hexenedioate + h2o => (2s)-2-hydroxy-4-oxobutane-1,2,4-tricarboxylate
(3Z)-2-oxo-4-carboxy-3-hexenedioate + H2O => (2S)-2-hydroxy-4-oxobutane-1,2,4-tricarboxylate
(3z)-2-oxo-4-carboxy-3-hexenedioate + h2o => (2s)-2-hydroxy-4-oxobutane-1,2,4-tricarboxylate