Maleylacetoacetate → Fumarate + Acetoacetate<br>Maleylpyruvate → Fumarate + Pyruvate<br><br>Comments:<br>This rule handles the lower hydroquinone pathway, and includes isomerization of the maleylpyruvate or maleylacetoacetate <i>cis</i> double bond (bt0290) and hydrolytic cleavage of the fumarylpyruvate or fumarylacetoacetate intermediate (bt0088 or bt0200) to produce fumarate and pyruvate or acetoacetate.
