Toluene dioxygenase

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toluene dioxygenase
Identifiers
EC no. 1.14.12.11
CAS no. 120038-36-0
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, toluene dioxygenase (EC 1.14.12.11) is an enzyme that catalyzes the chemical reaction

+ NADH
 
 
O2 + H+
 
Toluene dioxygenase
O2 + H+
 
 
+ NAD+
 

The four substrates of this enzyme are toluene, reduced nicotinamide adenine dinucleotide (NADH), oxygen, and a proton. Its products are (1S,2R)-3-methylcyclohexa-3,5-diene-1,2-diol and reduced NAD+. [1] [2] [3]

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 toluene,NADH:oxygen oxidoreductase (1,2-hydroxylating). This enzyme is also called toluene 2,3-dioxygenase. It participates in toluene and xylene degradation. [1]

References

  1. 1 2 Enzyme 1.14.12.11 at KEGG Pathway Database.
  2. Renganathan V (1989). "Possible involvement of toluene-2,3-dioxygenase in defluorination of 3-fluoro-substituted benzenes by toluene-degrading Pseudomonas sp strain T-12". Applied and Environmental Microbiology. 55 (2): 330–334. Bibcode:1989ApEnM..55..330R. doi:10.1128/aem.55.2.330-334.1989. PMC   184110 . PMID   16347845.
  3. Subramanian V, Liu TN, Yeh WK, Gibson DT (1979). "Toluene dioxygenase: purification of an iron-sulfur protein by affinity chromatography". Biochemical and Biophysical Research Communications. 91 (3): 1131–9. Bibcode:1979BBRC...91.1131S. doi:10.1016/0006-291X(79)91998-3. PMID   526270.