EC - Imidazolonepropionase

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IntEnz Enzyme Nomenclature


Accepted name:
Other names:
4(5)-imidazolone-5(4)-propionic acid hydrolase
imidazolone propionic acid hydrolase
Systematic name:
3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate amidohydrolase


Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , DIAGRAM , ERGO , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0050480
CAS Registry Number: 9024-91-3
UniProtKB/Swiss-Prot: (276) [show] [UniProt]


  1. Rao, D.R. and Greenberg, D.M.
    Studies on the enzymic decomposition of urocanic acid. IV. Purification and properties of 4(5)-imidazolone-5(4)-propionic acid hydrolase
    . J. Biol. Chem. 236: 1758-1763 (1961).
  2. Snyder, S.H., Silva, O.L. and Kies, M.W.
    The mammalian metabolism of L-histidine. IV. Purification and properties of imidazolone propionic acid hydrolase.
    J. Biol. Chem. 236: 2996-2998 (1961).

[EC created 1965, modified 2001]