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.

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 Oxidoreductases

         1.8 Acting on a sulfur group of donors

             1.8.5 With a quinone or similar compound as acceptor

                1.8.5.4 bacterial sulfide:quinone reductase

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Results	in table
4	Activating Compound
131	AA Sequence
2	Application
25	Cloned(Commentary)
38	Cofactor
7	Crystallization (Commentary)
24	Disease/ Diagnostics
4	Expression
37	General Information
31	IC50 Value
45	Inhibitors
36	kcat/KM [mM/s]
1	Ki Value [mM]
86	KM Value [mM]
40	Localization
21	Molecular Weight [Da]
18	Natural Substrates/ Products (Substrates)
64	Organism
4	Pathway
16	pH Optimum
3	pH Range
4	pI Value
64	Protein Variants
22	Purification (Commentary)
2	Reaction
4	Reaction Type
60	Reference
34	Source Tissue
18	Specific Activity [micromol/min/mg]
3	Storage Stability
100	Substrates and Products (Substrate)
23	Subunits
118	Synonyms
1	Systematic Name
11	Temperature Optimum [°C]
2	Temperature Range [°C]
5	Temperature Stability [°C]
50	Turnover Number [1/s]

Natural Substrates Products

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Natural Substrates Products on EC 1.8.5.4 - bacterial sulfide:quinone reductase

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NATURAL SUBSTRATE

NATURAL PRODUCT

REACTION DIAGRAM

ORGANISM

UNIPROT

COMMENTARY
(Substrate)

LITERATURE
(Substrate)

COMMENTARY
(Product)

LITERATURE
(Product)

REVERSIBILITY
r=reversible
ir=irreversible
?=not specified

HS- + quinone

polysulfide + quinol

Rattus norvegicus

-

-

742246

-

-

?

n H2S + n quinone

polysulfide + n quinol

9 entries

n H2S + n ubiquinone

polysulfide + n ubiquinol

Cupriavidus pinatubonensis

Q46V88

-

763952

-

-

?

n Na2S + n ubiquinone

polysulfide + n ubiquinol

Cupriavidus pinatubonensis

Q46V88

-

763952

-

-

?

sulfide + coenzyme Q

sulfane sulfur + reduced coenzyme Q

Homo sapiens

Q9Y6N5

-

743229

-

-

?

sulfide + glutathione

sulfur + reduced glutathione

Homo sapiens

Q9Y6N5

-

742905

-

-

?

sulfide + quinone

elemental sulfur + quinol

Acidithiobacillus ferrooxidans

-

-

713676

-

-

?

sulfide + ubiquinone-1

sulfur + ubiquinol-1

Homo sapiens

Q9Y6N5

-

724350

-

-

?

additional information

?

-

3 entries

n H2S + n quinone

polysulfide + n quinol

Alkalihalobacillus clausii

-

-

764059

-

-

?

n H2S + n quinone

polysulfide + n quinol

Caldivirga maquilingensis

-

-

764197

-

-

?

n H2S + n quinone

polysulfide + n quinol

Caldivirga maquilingensis IC-167

-

-

764197

-

-

?

n H2S + n quinone

polysulfide + n quinol

Exiguobacterium aurantiacum

-

-

764057

-

-

?

n H2S + n quinone

polysulfide + n quinol

Schizosaccharomyces pombe

O94284

-

765750

-

-

?

n H2S + n quinone

polysulfide + n quinol

Schizosaccharomyces pombe 972

O94284

-

765750

-

-

?

n H2S + n quinone

polysulfide + n quinol

Schizosaccharomyces pombe ATCC 24843

O94284

-

765750

-

-

?

n H2S + n quinone

polysulfide + n quinol

Synechococcus sp. PCC 7002

B1XRD0

-

765309

-

-

?

n H2S + n quinone

polysulfide + n quinol

Thiocapsa roseopersicina

A0A1Z2RRG1

-

764199

-

-

?

additional information

?

-

Homo sapiens

Q9Y6N5

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

724350

-

-

?

additional information

?

-

Homo sapiens

-

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

724350

-

-

?

additional information

?

-

Synechococcus sp. PCC 7002

B1XRD0

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

765309

-

-

-