Biology:Pyrimidodiazepine synthase
From HandWiki
| pyrimidodiazepine synthase | |||||||||
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| Identifiers | |||||||||
| EC number | 1.5.4.1 | ||||||||
| CAS number | 93586-06-2 | ||||||||
| 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 | ||||||||
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In enzymology, a pyrimidodiazepine synthase (EC 1.5.4.1) is an enzyme that catalyzes the chemical reaction
- a pyrimidodiazepine + glutathione disulfide + H2O [math]\displaystyle{ \rightleftharpoons }[/math] 6-pyruvoyltetrahydropterin + 2 glutathione
The 3 substrates of this enzyme are pyrimidodiazepine, glutathione disulfide, and H2O, whereas its two products are 6-pyruvoyltetrahydropterin and glutathione.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with a disulfide as acceptor. The systematic name of this enzyme class is pyrimidodiazepine:glutathione-disulfide oxidoreductase (ring-opening, cyclizing). Other names in common use include PDA synthase, pyrimidodiazepine:oxidized-glutathione oxidoreductase (ring-opening,, and cyclizing). This enzyme participates in glutathione metabolism.
References
- "Purification and properties of the enzymes from Drosophila melanogaster that catalyze the conversion of dihydroneopterin triphosphate to the pyrimidodiazepine precursor of the drosopterins". J. Biol. Chem. 259 (22): 14121–7. 1984. PMID 6438092.
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