4-sulfobenzoate 3,4-dioxygenase

In enzymology, a 4-sulfobenzoate 3,4-dioxygenase (EC 1.14.12.8) is an enzyme that catalyzes the chemical reaction

4-sulfobenzoate + NADH + H+ + O2 3,4-dihydroxybenzoate + sulfite + NAD+
4-sulfobenzoate 3,4-dioxygenase
Identifiers
EC no.1.14.12.8
CAS no.122933-81-7
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

The 4 substrates of this enzyme are 4-sulfobenzoate, NADH, H+, and O2, whereas its 3 products are 3,4-dihydroxybenzoate, sulfite, and NAD+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derived from O2 with NADH or NADPH as one donor, and incorporation of two atoms o oxygen into the other donor. The systematic name of this enzyme class is 4-sulfobenzoate,NADH:oxygen oxidoreductase (3,4-hydroxylating, sulfite-forming). Other names in common use include 4-sulfobenzoate dioxygenase, and 4-sulfobenzoate 3,4-dioxygenase system. This enzyme participates in 2,4-dichlorobenzoate degradation. It has 3 cofactors: iron, FMN, and Iron-sulfur.

References

    • Locher HH, Leisinger T, Cook AM (March 1991). "4-Sulphobenzoate 3,4-dioxygenase. Purification and properties of a desulphonative two-component enzyme system from Comamonas testosteroni T-2". Biochem. J. 274: 833–42. PMC 1149986. PMID 2012609.


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