Galactose oxidase - Citizendia

In enzymology, a galactose oxidase (EC 1.1.3.9) is an enzyme that catalyzes the chemical reaction

D-galactose + O₂ $\rightleftharpoons$ D-galacto-hexodialdose + H₂O₂

Thus, the two substrates of this enzyme are D-galactose and O₂, whereas its two products are D-galacto-hexodialdose and H₂O₂. Enzymes are Biomolecules that catalyze ( ie increase the rates of Chemical reactions Almost all enzymes are Proteins This article is about the Enzyme Commission codes For the European Commission system for coding chemicals see EC-No. Enzymes are Biomolecules that catalyze ( ie increase the rates of Chemical reactions Almost all enzymes are Proteins Catalysis is the process in which the rate of a Chemical reaction is increased by means of a Chemical substance known as a catalyst A chemical reaction is a process that always results in the interconversion of Chemical substances The substance or substances initially involved in a chemical reaction are called Oxygen (from the Greek roots ὀξύς (oxys (acid literally "sharp" from the taste of acids and -γενής (-genēs (producer literally begetteris the A product is a substance that forms as a result of a Biological - or Chemical reaction. Hydrogen peroxide (H2O2 is a very pale blue liquid which appears colorless in a dilute solution slightly more Viscous than water

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. In Biochemistry, an oxidoreductase is an Enzyme that catalyzes the transfer of Electrons from one molecule (the reductant, also called the hydrogen The systematic name of this enzyme class is D-galactose:oxygen 6-oxidoreductase. Other names in common use include D-galactose oxidase, and beta-galactose oxidase. This enzyme participates in galactose metabolism. Galactose (Gal (also called brain sugar) is a type of Sugar which is less sweet than Glucose. It employs one cofactor, copper. A cofactor is a non-protein Chemical compound that is bound (either tightly or loosely to an Enzyme and is required for Catalysis. Copper (ˈkɒpɚ is a Chemical element with the symbol Cu (cuprum and Atomic number 29

1 Structural studies
2 References
3 External links
- 3.1 Gene Ontology (GO) codes

Structural studies

As of late 2007, 9 structures have been solved for this class of enzymes, with PDB accession codes 1GOF, 1GOG, 1GOH, 1K3I, 1T2X, 2EIB, 2EIC, 2EID, and 2EIE. In Biochemistry and Chemistry, the tertiary structure of a Protein or any other Macromolecule is its three-dimensional structure as defined The Protein Data Bank ( PDB) is a repository for 3-D structural data of Proteins and Nucleic acids These data typically obtained by X-ray crystallography

References

IUBMB entry for 1.1.3.9
BRENDA references for 1.1.3.9 (Recommended. )
PubMed references for 1.1.3.9
PubMed Central references for 1.1.3.9
Google Scholar references for 1.1.3.9
AVIGAD G, AMARAL D, ASENSIO C, HORECKER BL (1962). "The D-galactose oxidase of Polyporus circinatus". J. Biol. Chem. 237: 2736–43. PMID 13863403.

External links

The CAS registry number for this enzyme class is 9028-79-9. CAS registry numbers are unique numerical identifiers for Chemical compounds Polymers biological sequences mixtures and Alloys They are also referred to