Pathways

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BRENDA KEGG MetaCyc

ascorbate metabolism (BRENDA)

:= BRENDA, := KEGG, := MetaCyc, := SABIO-RK
:= amino acid sequences := show the reaction diagram
EC Number
Reaction
Pathways
Reaction IDs
Stoichiometry Check
Missing Substrate
Missing Product
Commentary
Remark
L-sorbosone = 2-dehydro-L-gulonolactone
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natural substrates
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spontaneous reaction
L-sorbosone = 2-dehydro-L-gulonolactone
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natural substrates
GDP-L-galactose/GDP-D-glucose: hexose 1-phosphate guanylyltransferase
GDP-beta-L-galactose + alpha-D-mannose 1-phosphate = beta-L-galactose 1-phosphate + GDP-alpha-D-mannose
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natural substrates
L-galactonolactone dehydrogenase
L-galactono-1,4-lactone + 2 ferricytochrome c = L-ascorbate + 2 ferrocytochrome c + 2 H+
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: the first step of two-step reaction (see R12144, R00640+R07679)
natural substrates
L-galactonolactone dehydrogenase
L-gulono-1,4-lactone + ferricytochrome c = L-ascorbate + ferrocytochrome c
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glucuronate reductase
L-gulonate + NADP+ = D-glucuronate + NADPH + H+
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natural substrates
alcohol dehydrogenase (NADP+)
L-gulonate + NADP+ = D-glucuronate + NADPH + H+
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natural substrates
glucuronolactone reductase
L-gulonate + NADP+ = D-glucuronate + NADPH + H+
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natural substrates
aldose reductase
L-gulonate + NADP+ = D-glucuronate + NADPH + H+
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natural substrates
L-gulonolactone oxidase
L-gulono-1,4-lactone + O2 = L-ascorbate + H2O2
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: two-step reaction (see R03184+R00647)
natural substrates
alcohol dehydrogenase (NADP+)
D-galacturonate + NADPH + H+ = L-galactonate + NADP+
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natural substrates
D-galacturonate reductase
D-galacturonate + NADPH + H+ = L-galactonate + NADP+
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natural substrates
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spontaneous reaction
L-ascorbate = L-dehydroascorbate
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natural substrates
L-ascorbate peroxidase
2 L-ascorbate + H2O2 + 2 H+ = L-ascorbate + L-dehydroascorbate + 2 H2O
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natural substrates
H2O + L-dehydroascorbate = (4R,5S)-4,5,6-trihydroxy-2,3-dioxohexanoate
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natural substrates
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spontaneous reaction
H2O + L-dehydroascorbate = (4R,5S)-4,5,6-trihydroxy-2,3-dioxohexanoate
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natural substrates
gluconolactonase
H2O + L-dehydroascorbate = (4R,5S)-4,5,6-trihydroxy-2,3-dioxohexanoate
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natural substrates