mesaconate + H2O
mesaconase activity of class I fumarase contributes to mesaconate utilization by Burkholderia xenovorans. Mesaconate is metabolized through its hydration to (S)-citramalate. The first reaction of the pathway, the mesaconate hydratase (mesaconase) reaction, is catalyzed by a class I fumarase. The latter compound is then metabolized to acetyl-CoA and pyruvate with the participation of two enzymes of the itaconate degradation pathway, a promiscuous itaconate-CoA transferase able to activate (S)-citramalate in addition to itaconate and (S)-citramalyl-CoA lyase
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key enzyme of the mesaconate pathway of (S)-glutamate fermentation
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constitutive enzyme, the enzyme may play a role in the interconversion between S-malate and fumarate in addition to that between S-citramalate and mesaconate
