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EC Tree
The enzyme appears in viruses and cellular organisms
Synonyms
pyridoxine 5'-dehydrogenase,
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dehydrogenase, pyridoxol 5-
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pyridoxal-5-dehydrogenase
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pyridoxin 5-dehydrogenase
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pyridoxine 5'-dehydrogenase
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pyridoxine dehydrogenase
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pyridoxol 5-dehydrogenase
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pyridoxine + acceptor = isopyridoxal + reduced acceptor
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pyridoxine:acceptor 5-oxidoreductase
A flavoprotein (FAD).
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4-deoxypyridoxine + acceptor
3-hydroxy-2-methylpyridine-5-carboxaldehyde + reduced acceptor
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18% of activity with pyridoxine
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pyridoxal + acceptor
3-hydroxy-2-methylpyridine-4,5-dicarbaldehyde + reduced acceptor
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29% of activity with pyridoxine
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pyridoxamine + acceptor
4-aminomethyl-5-formyl-2-methylpyridin-3-ol + reduced acceptor
pyridoxine + acceptor
isopyridoxal + reduced acceptor
pyridoxine + O2
isopyridoxal + H2O2
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r
pyridoxamine + acceptor
4-aminomethyl-5-formyl-2-methylpyridin-3-ol + reduced acceptor
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27% of activity with pyridoxine
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pyridoxamine + acceptor
4-aminomethyl-5-formyl-2-methylpyridin-3-ol + reduced acceptor
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low activity
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pyridoxamine + acceptor
4-aminomethyl-5-formyl-2-methylpyridin-3-ol + reduced acceptor
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low activity
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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NAD+, NADP+
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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O2 or quinones
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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acceptor: 2,6-dichlorophenolindophenol
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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utilization of pyridoxine as sole source of carbon and nitrogen
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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highly specific for pyridoxine
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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not: O2
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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acceptor: 2,6-dichlorophenolindophenol
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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highly specific for pyridoxine
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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not: O2
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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acceptor: 2,6-dichlorophenolindophenol
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pyridoxine + acceptor
isopyridoxal + reduced acceptor
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utilization of pyridoxine as sole source of carbon and nitrogen
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FAD
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flavoprotein, FAD-dependent
FAD
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flavoprotein, FAD-dependent
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Dithionitrobenzoic acid
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additional information
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not inhibited by alpha,alpha'-dipyridyl, o-, m- or p-phenanthroline
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p-chloromercuribenzoate
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p-chloromercuribenzoate
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0.18
pyridoxine
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22
pyridoxine
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acceptor O2
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7 - 8.3
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pyridoxine + O2, Tris buffer, phosphate buffer
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5 - 7
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pH 5.0: about 30% of activity maximum, pH 7.0: 17% of activity maximum
6.4 - 9.5
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activity at pH 9.5 in Tris is about 70% of that at pH 7.3 while activities at pH 6.4 and pH 6.0 in phosphate buffer are about 75% and 0% respectively of that at pH 7.3
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Cr-7, inducible enzyme
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brenda
IA
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brenda
IA
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brenda
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brenda
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58600
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2 * 58600, SDS-PAGE
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dimer
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2 * 58600, SDS-PAGE
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Sundaram, T.K.; Snell, E.E.
The bacterial oxidation of vitamin B6. V. The enzymatic formation of pyridoxal and isopyridoxal from pyridoxine
J. Biol. Chem.
244
2577-2584
1969
Pseudomonas sp., Pseudomonas sp. IA
brenda
Jong, Y.J.; Nelson, M.J.K.; Snell, E.E.
Enzymes of vitamin B6 degradation. Purification and properties of pyridoxine 5-dehydrogenase (oxidase)
J. Biol. Chem.
261
15102-15105
1986
Arthrobacter sp.
brenda
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1.1.99.9 pyridoxine 5-dehydrogenase
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