1.8.5.4: bacterial sulfide:quinone reductase
This is an abbreviated version!
For detailed information about bacterial sulfide:quinone reductase, go to the full flat file.
Word Map on EC 1.8.5.4
-
1.8.5.4
-
sulfur
-
h2s
-
thiosulfate
-
persulfide
-
polysulfide
-
acidithiobacillus
-
sulfurtransferase
-
sulfide-oxidizing
-
rhodanese
-
sulfane
-
ferrooxidans
-
3-mercaptopyruvate
-
anoxygenic
-
sulfur-oxidizing
-
chemolithotrophic
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sulfide-dependent
-
echiuran
-
unicinctus
-
limnetica
-
urechis
-
monotopic
-
oscillatoria
-
tepidum
-
chlorobaculum
-
sulfide-rich
-
medicine
- 1.8.5.4
- sulfur
- h2s
- thiosulfate
- persulfide
- polysulfide
- acidithiobacillus
- sulfurtransferase
-
sulfide-oxidizing
- rhodanese
-
sulfane
- ferrooxidans
- 3-mercaptopyruvate
-
anoxygenic
-
sulfur-oxidizing
-
chemolithotrophic
-
sulfide-dependent
-
echiuran
- unicinctus
- limnetica
-
urechis
-
monotopic
- oscillatoria
- tepidum
- chlorobaculum
-
sulfide-rich
- medicine
Reaction
n HS-
+
n quinone
=
Synonyms
CmSQR, CpSQR, CT1087, HMT2, III SQR, membrane-bound sulfide:quinone oxidoreductases, SQOR, SQR, Sqrdl, sqrF, Suden_1879, Suden_2082, Suden_619, sulfide quinone oxidoreductase, sulfide quinone reductase, sulfide-quinone oxidoreductase, sulfide-quinone reductase, sulfide: quinone oxidoreductase, sulfide:decylubiquinone oxidoreductase, sulfide:quinone oxidoreductase, sulfidequinone reductase-like protein, TrSqrF, type I SQR, type III sulfide:quinone oxidoreductase, type VI sulfide:quinone oxidoreductase
ECTree
1.8.5.4 bacterial sulfide:quinone reductaseAdvanced search results
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results (Substrates Products
Substrates Products on EC 1.8.5.4 - bacterial sulfide:quinone reductase
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SUBSTRATE 
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
n Na2S + n decylubiquinone
polysulfide + n decylubiquinol + 2 Na+
-
-
-
-
?
Na2S + duroquinone
polysulfide + duroquinol + 2 Na+
-
-
-
?
sulfide + 2,3-dimethyl-1,4-naphthoquinone
sulfur + 2,3-dimethyl-1,4-naphthoquinol
-
-
-
-
?
sulfide + 2-methyl-3-methylthio-1,4-naphthoquinone
sulfur + 2-methyl-3-methylthio-1,4-naphthoquinol
-
lowest activity
-
-
?
sulfide + cysteine + coenzyme Q1
cysteine persulfide + reduced coenzyme Q1
-
-
-
-
?
sulfide + decylubiquinone + cyanide
sulfur + decylubiquinol + thiocyanate
-
-
-
-
?
sulfide + decylubiquinone + Escherichia coli thioredoxin
sulfur + decylubiquinol + ?
-
with Escherichia coli thioredoxin, SQR exhibits one-tenth of the cyanide-dependent activity
-
-
?
sulfide + decylubiquinone + sulfite
sulfur + decylubiquinol + ?
-
with sulfite, SQR exhibits one-tenth of the cyanide-dependent activity
-
-
?
sulfide + duroquinone 23
sulfur + duroquinol 23
-
% compared to the activity with decylubiquinone
-
-
?
sulfide + homocysteine + coenzyme Q1
homocysteine persulfide + reduced coenzyme Q1
-
-
-
-
?
sulfide + menadione
polysulfide + menadiol
-
25% compared to the activity with decylubiquinone
-
-
?
sulfide + plastoquinone-2
sulfur + plastoquinol-2
-
highest activity
-
-
?
sulfide + reduced glutathione + coenzyme Q1
glutathione persulfide + reduced coenzyme Q1
-
-
-
-
?
sulfide + sulfide + coenzyme Q
hydrogen disulfide + reduced coenzyme Q
-
-
-
?
n S2- + n decylubiquinone
polysulfide + n decylubiquinol
-
Na2S
-
-
?
n S2- + n decylubiquinone
polysulfide + n decylubiquinol
-
Na2S
-
-
?
sulfide + decylubiquinone
polysulfide + decylubiquinol
-
-
-
-
?
sulfide + decylubiquinone
polysulfide + decylubiquinol
-
-
-
-
?
sulfide + decylubiquinone
sulfur + decylubiquinol
-
-
-
?
sulfide + decylubiquinone
sulfur + decylubiquinol
-
-
-
?
sulfide + decylubiquinone
sulfur + decylubiquinol
-
-
-
-
?
sulfide + duroquinone
sulfur + duroquinol
-
23% compared to the activity with decylubiquinone
-
-
?
sulfide + duroquinone
sulfur + duroquinol
-
23% compared to the activity with decylubiquinone
-
-
?
sulfide + menadione
sulfur + menadiol
-
25% compared to the activity with decylubiquinone
-
-
?
sulfide + menadione
sulfur + menadiol
-
25% compared to the activity with decylubiquinone
-
-
?
sulfide + ubiquinone-1
sulfur + ubiquinol-1
-
15% compared to the activity with decylubiquinone
-
-
?
sulfide + ubiquinone-1
sulfur + ubiquinol-1
-
15% compared to the activity with decylubiquinone
-
-
?
additional information
?
-
the enzymatic reaction catalyzed by sulfide:quinone oxidoreductase includes the oxidation of sulfide compounds H2S, HS-, and S2- to soluble polysulfide chains or to elemental sulfur in the form of octasulfur rings
-
-
?
additional information
?
-
-
the enzymatic reaction catalyzed by sulfide:quinone oxidoreductase includes the oxidation of sulfide compounds H2S, HS-, and S2- to soluble polysulfide chains or to elemental sulfur in the form of octasulfur rings
-
-
?
additional information
?
-
-
quinone binding site structure analysis and binding mechanism by CmSQR, overview
-
-
-
additional information
?
-
-
quinone binding site structure analysis and binding mechanism by CmSQR, overview
-
-
-
additional information
?
-
-
no activity with vitamin K1
-
-
?
additional information
?
-
cyanide, sulfite, or sulfide can act as the sulfane sulfur acceptor in reactions that exhibit pH optima at 8.5, 7.5, or 7.0, respectively, and produce thiocyanate, thiosulfate, or a putative sulfur analogue of hydrogen peroxide, i.e. H2S2, respectively. Sulfite is the physiological acceptor of the sulfur and the reaction is the predominant source of the thiosulfate produced during H2S oxidation by mammalian tissues
-
-
?
additional information
?
-
-
cyanide, sulfite, or sulfide can act as the sulfane sulfur acceptor in reactions that exhibit pH optima at 8.5, 7.5, or 7.0, respectively, and produce thiocyanate, thiosulfate, or a putative sulfur analogue of hydrogen peroxide, i.e. H2S2, respectively. Sulfite is the physiological acceptor of the sulfur and the reaction is the predominant source of the thiosulfate produced during H2S oxidation by mammalian tissues
-
-
?
additional information
?
-
SQR oxidizes sulfide to polysulfide, which spontaneously reacts with glutathione (GSH) to produce glutathione persulfide (GSSH), PDO oxidizes GSSH to sulfite, which spontaneously reacts with polysulfide to produce thiosulfate
-
-
-
additional information
?
-
sulfide-dependent duroquinone-reducing activity of purified wild-type and single cysteine mutant TrSqrF variants, overview
-
-
-
additional information
?
-
-
sulfide-dependent duroquinone-reducing activity of purified wild-type and single cysteine mutant TrSqrF variants, overview
-
-
-
