ENTRY       EC 4.2.1.49
NAME        Urocanate hydratase
            Urocanase
CLASS       Lyases
            Carbon-oxygen lyases
            Hydro-lyases
SYSNAME     4,5-Dihydro-4-oxo-5-imidazolepropanoate hydro-lyase
REACTION    4,5-Dihydro-4-oxo-5-imidazolepropanoate = Urocanate + H2O
SUBSTRATE   4,5-Dihydro-4-oxo-5-imidazolepropanoate
PRODUCT     Urocanate
            H2O
COFACTOR    2-Oxobutanoate
COMMENT     Contains bound 2-oxobutanoate
PATHWAY     PATH: MAP00340  Histidine metabolism
GENES       BSU: hutU(ee57A)
DBLINKS     University of Geneva ENZYME DATA BANK: 4.2.1.49
            WIT (What Is There) Metabolic Reconstruction: 4.2.1.49
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