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Beta-ureidopropionase

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Beta-ureidopropionase
Identifiers
EC no.3.5.1.6
CAS no.9027-27-4
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

Beta-ureidopropionase (EC 3.5.1.6) is an enzyme that catalyzes the chemical reaction

 
H2O
Rightward reaction arrow with minor substrate(s) from top left and minor product(s) to top right
 
 
 
+ CO2
 

The enzyme characterised from rat liver hydrolyses 3-ureidopropionic acid to β-alanine, with ammonia and carbon dioxide as byproducts.[1][2][3] In humans, the reaction is part of the breakdown of pyrimidines.[4][5]

This enzyme is a hydrolase, one acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is N-carbamoyl-beta-alanine amidohydrolase.[6]

Structural studies

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As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1R3N​, PDB: 1R43​, PDB: 2V8D​, PDB: 2V8G​, PDB: 2V8H​, and PDB: 2V8V​.

References

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  1. ↑ Caravaca J, Grisolia S (1958). "Enzymatic decarbamylation of carbamyl beta-alanine and carbamyl beta-aminoisobutyric acid". J. Biol. Chem. 231 (1): 357–65. doi:10.1016/S0021-9258(19)77312-8. PMID 13538975.
  2. ↑ Campbell LL (1960). "Reductive degradation of pyrimidines. 5. Enzymatic conversion of N-carbamyl-beta-alanine to beta-alanine, carbon dioxide, and ammonia". J. Biol. Chem. 235: 2375–8. doi:10.1016/S0021-9258(18)64630-7. PMID 13849303.
  3. ↑ Traut TW, Loechel S (1984). "Pyrimidine catabolism: individual characterization of the three sequential enzymes with a new assay". Biochemistry. 23 (11): 2533–9. doi:10.1021/bi00306a033. PMID 6433973.
  4. ↑ Maurer, Dirk; Lohkamp, Bernhard; Krumpel, Michael; Widersten, Mikael; Dobritzsch, Doreen (2018). "Crystal structure and pH-dependent allosteric regulation of human β-ureidopropionase, an enzyme involved in anticancer drug metabolism". Biochemical Journal. 475 (14): 2395–2416. doi:10.1042/BCJ20180222. PMID 29976570.
  5. ↑ Boča, Roman; Rádiková, Žofia; Štofko, Juraj; Vranovičová, Beata; Rajnák, Cyril (2025). "Quantum chemical study of molecular properties of small branched-chain amino acids in water". Amino Acids. 57 (1) 11. doi:10.1007/s00726-024-03437-y. PMC 11743389. PMID 39827427.
  6. ↑ Enzyme 3.5.1.6 at KEGG Pathway Database.