| 3-hydroxyanthranilic acid dioxygenase | |||||||||||||||||||||||||||||||||||||||||||||||||||
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| Identifiers | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Aliases | 3hydroanth_dOaseIPR0103293-hydroxyanthranilate 3,4-dioxygenase3-hydroxyanthranilate oxygenase3-hydroxyanthranilic oxygenase3-hydroxyanthranilate:oxygen 3,4-oxidoreductase (decyclizing)3-hydroxyanthranilic acid oxygenase | ||||||||||||||||||||||||||||||||||||||||||||||||||
| External IDs | GeneCards: [1]; OMA: - orthologs | ||||||||||||||||||||||||||||||||||||||||||||||||||
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| Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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| 3-hydroxyanthranilate 3,4-dioxygenase | |||||||||
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 3-hydroxyanthranilate 3,4-dioxygenase monomer, Human | |||||||||
| Identifiers | |||||||||
| EC no. | 1.13.11.6 | ||||||||
| CAS no. | 9029-50-9 | ||||||||
| 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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3-hydroxyanthranilate 3,4-dioxygenase ( EC 1.13.11.6) is an enzyme encoded by the HAAO gene that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are 3-hydroxyanthranilate and O2, whereas its product is 2-amino-3-carboxymuconate semialdehyde.
This enzyme belongs to the family of oxidoreductases, specifically those acting on single donors with O2 as oxidant and incorporation of two atoms of oxygen into the substrate ( oxygenases). The oxygen incorporated need not be derived from O2.
The systematic name of this enzyme class is 3-hydroxyanthranilate:oxygen 3,4-oxidoreductase (decyclizing). Other names in common use include 3-hydroxyanthranilate oxygenase, 3-hydroxyanthranilic acid oxygenase, 3-hydroxyanthranilic oxygenase, 3-hydroxyanthranilic acid oxidase and 3HAO. This enzyme participates in tryptophan metabolism. It employs one cofactor, iron.
Structural studies
As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes 1YFU, 1YFW, 1YFX, 1YFY, 1ZVF, and 2QNK.h
References
- DECKER RH, KANG HH, LEACH FR, HENDERSON LM (1961). "Purification and properties of 3-hydroxyanthranilic acid oxidase". J. Biol. Chem. 236 (11): 3076–82. doi: 10.1016/S0021-9258(19)76432-1. PMID 13884755.
- Boyer, P.D., Lardy, H. and Myrback, K. (Eds.), The Enzymes, 2nd ed., vol. 8, Academic Press, New York, 1963, p. 353-371.
