| urocanate | A salt or ester of urocanic acid. Urocanate hydratase, an enzyme catalyzing the reaction of water with urocanic acid to produce 4-imidazolone-5-propionic acid, a step in l-histidine catabolism; this enzyme is absent in cases of urocanic aciduria. Synonym: urocanase. (05 Mar 2000) |
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| urocanate hydratase | <enzyme> An enzyme that catalyses the conversion of 4,5-dihydro-4-oxo-5-imidazolepropanoate to urocanate and water. Chemical name: 4,5-Dihydro-4-oxo-5-imidazolepropanoate hydro-lyase Registry number: EC 4.2.1.49 (12 Dec 1998) |
Synonyms : Urocaninase, Hydratase, Urocanate
| urocanate |
the anionic form of urocanic acid.
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| urocanate hydratase |
[EC 4.2.1.49] an enzyme of the lyase class that catalyzes the reduction of urocanate to formiminoglutamate, a step in the catabolism of histidine. Deficiency of the enzyme, presumed to be an autosomal recessive trait, causes urocanase deficiency. Called also urocanase.
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