Sulfite reductase (NADPH)

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Sulfite reductase (NADPH)
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Sulfite reductase monomer, E.Coli
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EC no. 1.8.1.2
CAS no. 9029-35-0
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Sulfite reductase (NADPH) (EC 1.8.1.2, sulfite (reduced nicotinamide adenine dinucleotide phosphate) reductase, NADPH-sulfite reductase, NADPH-dependent sulfite reductase, H2S-NADP oxidoreductase, sulfite reductase (NADPH2)) is an enzyme with systematic name hydrogen-sulfide:NADP+ oxidoreductase. [1] [2] [3] This enzyme catalises the following chemical reaction

hydrogen sulfide + 3 NADP+ + 3 H2O sulfite + 3 NADPH + 3 H+

Sulfite reductase is an iron flavoprotein (FAD and FMN).

Related Research Articles

<span class="mw-page-title-main">Nicotinamide adenine dinucleotide</span> Chemical compound which is reduced and oxidized

Nicotinamide adenine dinucleotide (NAD) is a coenzyme central to metabolism. Found in all living cells, NAD is called a dinucleotide because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine nucleobase and the other, nicotinamide. NAD exists in two forms: an oxidized and reduced form, abbreviated as NAD+ and NADH (H for hydrogen), respectively.

<span class="mw-page-title-main">Nicotinamide adenine dinucleotide phosphate</span> Chemical compound

Nicotinamide adenine dinucleotide phosphate, abbreviated NADP+ or, in older notation, TPN (triphosphopyridine nucleotide), is a cofactor used in anabolic reactions, such as the Calvin cycle and lipid and nucleic acid syntheses, which require NADPH as a reducing agent ('hydrogen source'). NADPH is the reduced form of NADP+, the oxidized form. NADP+ is used by all forms of cellular life.

Nitrate reductase (NADPH) (EC 1.7.1.3, assimilatory nitrate reductase, assimilatory reduced nicotinamide adenine dinucleotide phosphate-nitrate reductase, NADPH-nitrate reductase, assimilatory NADPH-nitrate reductase, triphosphopyridine nucleotide-nitrate reductase, NADPH:nitrate reductase, nitrate reductase (NADPH2), NADPH2:nitrate oxidoreductase) is an enzyme with systematic name nitrite:NADP+ oxidoreductase. This enzyme catalises the following chemical reaction

In enzymology, a fructose 5-dehydrogenase (NADP+) (EC 1.1.1.124) is an enzyme that catalyzes the chemical reaction

In enzymology, a glycerol 2-dehydrogenase (NADP+) (EC 1.1.1.156) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Hydroxymethylglutaryl-CoA reductase (NADPH)</span>

In enzymology, a hydroxymethylglutaryl-CoA reductase (NADPH) (EC 1.1.1.34) is an enzyme that catalyzes the chemical reaction

In enzymology, a sorbose 5-dehydrogenase (NADP+) (EC 1.1.1.123) is an enzyme that catalyzes the chemical reaction

In enzymology, a 2-dehydropantolactone reductase (B-specific) (EC 1.1.1.214) is an enzyme that catalyzes the chemical reaction

In enzymology, an enoyl-[acyl-carrier-protein] reductase (NADPH, A-specific) (EC 1.3.1.39) is an enzyme that catalyzes the chemical reaction

In enzymology, an enoyl-[acyl-carrier-protein] reductase (NADPH, B-specific) (EC 1.3.1.10) is an enzyme that catalyzes the chemical reaction

In enzymology, a ferredoxin-NADP+ reductase (EC 1.18.1.2) abbreviated FNR, is an enzyme that catalyzes the chemical reaction

In enzymology, a rubredoxin—NAD(P)+ reductase (EC 1.18.1.4) is an enzyme that catalyzes the chemical reaction

Azobenzene reductase also known as azoreductase (EC 1.7.1.6) is an enzyme that catalyzes the chemical reaction:

Berberine reductase (EC 1.5.1.31) is an enzyme that catalyzes the chemical reaction

Bis-gamma-glutamylcystine reductase (EC 1.8.1.13) is an enzyme that catalyzes the chemical reaction

In enzymology, a NADPH—cytochrome-c2 reductase (EC 1.6.2.5) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">NADPH dehydrogenase</span>

In enzymology, a NADPH dehydrogenase (EC 1.6.99.1) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">NAD(P)H dehydrogenase (quinone)</span>

In enzymology, a NAD(P)H dehydrogenase (quinone) (EC 1.6.5.2) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Sulfite reductase</span> Enzyme family

Sulfite reductases (EC 1.8.99.1) are enzymes that participate in sulfur metabolism. They catalyze the reduction of sulfite to hydrogen sulfide and water. Electrons for the reaction are provided by a dissociable molecule of either NADPH, bound flavins, or ferredoxins.

Adrenodoxin-NADP+ reductase (EC 1.18.1.6, adrenodoxin reductase, nicotinamide adenine dinucleotide phosphate-adrenodoxin reductase, ADR, NADPH:adrenal ferredoxin oxidoreductase) is an enzyme with systematic name adrendoxin:NADP+ oxidoreductase. This enzyme catalyses the following chemical reaction

References

  1. ↑ Hilz H, Kittler M, Knape G (1959). "[The reduction of sulfate in yeast]". Biochemische Zeitschrift. 332: 151–66. PMID   14401842.
  2. ↑ Siegel LM, Murphy MJ, Kamin H (January 1973). "Reduced nicotinamide adenine dinucleotide phosphate-sulfite reductase of enterobacteria. I. The Escherichia coli hemoflavoprotein: molecular parameters and prosthetic groups". The Journal of Biological Chemistry. 248 (1): 251–64. doi: 10.1016/S0021-9258(19)44469-4 . PMID   4144254.
  3. ↑ Yoshimoto A, Sato R (April 1968). "Studies on yeast sulfite reductase. I. Purification and characterization". Biochimica et Biophysica Acta. 153 (3): 555–75. doi:10.1016/0005-2728(68)90185-0. PMID   4384979.
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