pteridine oxidase

Identifiers
EC number| 1.17.3.1
CAS number| 74082-65-8
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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PMC| articles
PubMed| articles
NCBI| proteins

In enzymology, a pteridine oxidase (EC 1.17.3.1) is an enzyme that catalyzes the chemical reaction

2-amino-4-hydroxypteridine + O2 [math]\displaystyle{ \rightleftharpoons }[/math] 2-amino-4,7-dihydroxypteridine + (?)

Thus, the two substrates of this enzyme are 2-amino-4-hydroxypteridine and O2, whereas its product is 2-amino-4,7-dihydroxypteridine.

This enzyme belongs to the family of oxidoreductases, specifically those acting on CH or CH2 groups with oxygen as acceptor. The systematic name of this enzyme class is 2-amino-4-hydroxypteridine:oxygen oxidoreductase (7-hydroxylating).

## References

* "Detection of a pteridine oxidase in plants". Plant Sci. Lett. 18: 169-175. 1980. doi:10.1016/0304-4211(80)90047-4.

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Other oxidoreductases (EC 1.15-1.21)

1.15: Acting on superoxide as acceptor|

* Superoxide dismutase
* SOD1
* SOD2
* SOD3

1.16: Oxidizing metal ions|

* Ceruloplasmin

1.17: Acting on CH or CH2 groups|

* Xanthine oxidase
* Ribonucleotide reductase
* 4-Hydroxy-3-methylbut-2-enyl diphosphate reductase

1.18: Acting on iron-sulfur proteins as donors|

* Nitrogenase

1.19: Acting on reduced flavodoxin as donor|

* Nitrogenase (flavodoxin)

1.20: Acting on phosphorus or arsenic in donors|

* Glutaredoxin
* GLRX
* GLRX2
* GLRX3
* GLRX5

1.21: Acting on X-H and Y-H to form an X-Y bond|

* Isopenicillin N synthase
* Columbamine oxidase
* Reticuline oxidase
* Sulochrin oxidase
* (+)-bisdechlorogeodin-forming
* (-)-bisdechlorogeodin-forming
* Aureusidin synthase
* Tetrahydrocannabinolic acid synthase
* Cannabidiolic acid synthase
* Dichlorochromopyrrolate synthase

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Enzymes

Activity|

* Active site
* Binding site
* Catalytic triad
* Oxyanion hole
* Enzyme promiscuity
* Catalytically perfect enzyme
* Coenzyme
* Cofactor
* Enzyme catalysis

Regulation|

* Allosteric regulation
* Cooperativity
* Enzyme inhibitor
* Enzyme activator

Classification|

* EC number
* Enzyme superfamily
* Enzyme family
* List of enzymes

Kinetics|

* Enzyme kinetics
* Eadie–Hofstee diagram
* Hanes–Woolf plot
* Lineweaver–Burk plot
* Michaelis–Menten kinetics

Types|

* EC1 Oxidoreductases (list)
* EC2 Transferases (list)
* EC3 Hydrolases (list)
* EC4 Lyases (list)
* EC5 Isomerases (list)
* EC6 Ligases (list)
* EC7 Translocases (list)

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Original source: https://en.wikipedia.org/wiki/Pteridine oxidase. Read more

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