Dihydropyrimidinase
From Wikipedia the free encyclopedia
| dihydropyrimidinase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 Dihydropyrimidinase tetramer, Human | |||||||||
| Identifiers | |||||||||
| EC no. | 3.5.2.2 | ||||||||
| CAS no. | 9030-74-4 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a dihydropyrimidinase (EC 3.5.2.2) is an enzyme that catalyzes the chemical reaction
- 5,6-dihydrouracil + H2O 3-ureidopropanoate
Thus, the two substrates of this enzyme are 5,6-dihydrouracil and H2O, whereas its product is 3-ureidopropanoate.
This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in cyclic amides. The systematic name of this enzyme class is 5,6-dihydropyrimidine amidohydrolase. Other names in common use include hydantoinase, hydropyrimidine hydrase, hydantoin peptidase, pyrimidine hydrase, and D-hydantoinase. This enzyme participates in 3 metabolic pathways: pyrimidine metabolism, beta-alanine metabolism, and pantothenate and coa biosynthesis.
Structural studies[edit]
As of late 2007, 10 structures have been solved for this class of enzymes, with PDB accession codes 1GKP, 1GKQ, 1GKR, 1NFG, 1YNY, 2FTW, 2FTY, 2FVK, 2FVM, and 2GSE.
References[edit]
- Brooks KP, Jones EA, Kim BD, Sander EG (1983). "Bovine liver dihydropyrimidine amidohydrolase: purification, properties, and characterization as a zinc metalloenzyme". Arch. Biochem. Biophys. 226 (2): 469–83. doi:10.1016/0003-9861(83)90316-8. PMID 6639068.
- EADIE GS, BERNHEIM F, BERNHEIM ML (1949). "The partial purification and properties of animal and plant hydantoinases". J. Biol. Chem. 181 (2): 449–58. PMID 15393763.
