1.12.98.4: sulfhydrogenase

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For detailed information about sulfhydrogenase, go to the full flat file.

Reaction

Synonyms

EC 1.97.1.3, H-II, H2:sulfuroxidoreductase complex, hydrogenase II, NiFe sulfhydrogenase, polysulfide dehydrogenase, polysulfide reductase, reductase, sulfur, SH2ase, sulfhydrogenase, sulfur reductase, sulhydrogenase

ECTree

     1 Oxidoreductases

         1.12 Acting on hydrogen as donor

             1.12.98 With other, known, physiological acceptors

                1.12.98.4 sulfhydrogenase

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15	Activating Compound
139	AA Sequence
1	Application
1	CAS Registry Number
1	Cloned(Commentary)
12	Cofactor
1	Crystallization (Commentary)
1	Expression
5	General Stability
15	Inhibitors
5	KM Value [mM]
31	Localization
26	Metals/Ions
15	Molecular Weight [Da]
6	Natural Substrates/ Products (Substrates)
5	Organic Solvent Stability
36	Organism
4	Oxidation Stability
6	Pathway
10	pH Optimum
3	pH Range
1	pH Stability
18	Purification (Commentary)
13	Reaction
3	Reaction Type
33	Reference
16	Specific Activity [micromol/min/mg]
1	Storage Stability
62	Substrates and Products (Substrate)
13	Subunits
15	Synonyms
1	Systematic Name
3	Temperature Optimum [°C]
7	Temperature Stability [°C]
2	Turnover Number [1/s]

Systematic Name

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Systematic Name on EC 1.12.98.4 - sulfhydrogenase

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SYSTEMATIC NAME

IUBMB Comments

H2:polysulfide oxidoreductase

An iron-sulfur protein. The enzyme from the hyperthermophilic archaeon Pyrococcus furiosus is part of two heterotetrameric complexes where the beta and gamma subunits function as sulfur reductase and the alpha and delta subunits function as hydrogenases (EC 1.12.1.3, hydrogen dehydrogenase [NADP+] and EC 1.12.1.4, hydrogen dehydrogenase [NAD(P)+], respectively). Sulfur can also be used as substrate, but since it is insoluble in aqueous solution and polysulfide is generated abiotically by the reaction of hydrogen sulfide and sulfur, polysulfide is believed to be the true substrate [2].