1.12.1.4: hydrogenase (NAD+, ferredoxin)
This is an abbreviated version!
For detailed information about hydrogenase (NAD+, ferredoxin), go to the full flat file.
Word Map on EC 1.12.1.4
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1.12.1.4
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desulfovibrio
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hydrogenases
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desulfuricans
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nickel-iron
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diiron
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dinuclear
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fructosovorans
- 1.12.1.4
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desulfovibrio
- hydrogenases
- desulfuricans
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nickel-iron
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diiron
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dinuclear
- fructosovorans
Reaction
2 H2 + + 2 oxidized ferredoxin = 5 H+ + + 2 reduced ferredoxin
Synonyms
bifurcating [FeFe] hydrogenase, electron-bifurcating ferredoxin- and NAD-dependent hydrogenase, Fe-only hydrogenase, HydABC, HydC, HydF, iron hydrogenase, NAD(P)+-linked [FeFe]-hydrogenase, [FeFe]-hydrogenase, [FeFe]-type hydrogenase
ECTree
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Substrates Products
Substrates Products on EC 1.12.1.4 - hydrogenase (NAD+, ferredoxin)
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REACTION DIAGRAM
NAD+ + 2 oxidized methyl viologen + 2 H2
NADH + 3 H+ + 2 reduced methyl viologen
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?
NADH + 3 H+ + 2 reduced ferredoxin
NAD+ + 2 oxidized ferredoxin + 2 H2
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per mol NADH, about 2 mol H2 is formed
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?
NADH + 3 H+ + 2 reduced methyl viologen
NAD+ + 2 oxidized methyl viologen + 2 H2
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?
NADH + H+ + reduced methyl viologen
H2 + NAD+ + oxidized methyl viologen
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?
sodium dithionite + H+ + reduced anthraquinone-2,6-disulfonic acid
H2 + oxidized anthraquinone-2,6-disulfonic acid + ?
H2 + NAD+ + oxidized ferredoxin
H+ + NADH + reduced ferredoxin
Thermotoga maritima MSB8 / DSM 3109 / ATCC 43589
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?
NADH + 3 H+ + 2 reduced ferredoxin
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ferredoxin reduction with H2 is driven by the exergonic reduction of NAD+ (E0 -320 mV) with H2. In the absence of NAD+, ferredoxin is not reduced
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?
NAD+ + 2 oxidized ferredoxin + 2 H2
NADH + 3 H+ + 2 reduced ferredoxin
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?
NAD+ + 2 oxidized ferredoxin + 2 H2
NADH + 3 H+ + 2 reduced ferredoxin
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?
NADH + H+ + reduced ferredoxin
H2 + NAD+ + oxidized ferredoxin
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the iron hydrogenase requires the presence of both electron carriers, NADH and ferredoxin, for catalysis of H2 production
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?
NADH + H+ + reduced ferredoxin
H2 + NAD+ + oxidized ferredoxin
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the iron hydrogenase requires the presence of both electron carriers, NADH and ferredoxin, for catalysis of H2 production
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?
NADH + H+ + reduced ferredoxin
H2 + NAD+ + oxidized ferredoxin
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?
H2 + oxidized anthraquinone-2,6-disulfonic acid + ?
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sodium dithionite + H+ + reduced anthraquinone-2,6-disulfonic acid
H2 + oxidized anthraquinone-2,6-disulfonic acid + ?
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?
H2 + oxidized methyl viologen + ?
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?
sodium dithionite + H+ + reduced methyl viologen
H2 + oxidized methyl viologen + ?
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?