Information on EC 3.1.1.92 - 4-sulfomuconolactone hydrolase

for references in articles please use BRENDA:EC3.1.1.92
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The enzyme appears in viruses and cellular organisms

EC NUMBER
COMMENTARY hide
3.1.1.92
-
RECOMMENDED NAME
GeneOntology No.
4-sulfomuconolactone hydrolase
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
4-sulfomuconolactone + H2O = maleylacetate + sulfite
show the reaction diagram
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-
-
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PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
4-sulfocatechol degradation
-
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Aminobenzoate degradation
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Microbial metabolism in diverse environments
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SYSTEMATIC NAME
IUBMB Comments
4-sulfomuconolactone sulfohydrolase
The enzyme was isolated from the bacteria Hydrogenophaga intermedia and Agrobacterium radiobacter S2. It catalyses a step in the degradation of 4-sulfocatechol.
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
4-sulfomuconolactone + H2O
maleylacetate + sulfite
show the reaction diagram
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Zn2+
0.6 mol of Zn2+ per mol of enzyme
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.34 - 1.9
4-sulfomuconolactone
TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
6.7 - 45
4-sulfomuconolactone
kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
20 - 23
4-sulfomuconolactone
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
12.6
pH 8.0, temperature not specified in the publication
79
pH 8.0, temperature not specified in the publication
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli