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IUBMB CommentsQuinolin-4-ol exists largely as the quinolin-4(1H)-one tautomer.
The expected taxonomic range for this enzyme is: Pseudomonas putida
Synonyms
1h-4-oxoquinoline monooxygenase,
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1H-4-Oxoquinoline monooxygenase
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Oxygenase, 4(1H)-oxoquinoline 3-mono-
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Quinolin-4(1H)-one 3-monooxygenase
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quinolin-4-ol + NADH + H+ + O2 = quinolin-3,4-diol + NAD+ + H2O
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quinolin-4(1H)-one,NADH:oxygen oxidoreductase (3-oxygenating)
Quinolin-4-ol exists largely as the quinolin-4(1H)-one tautomer.
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1H-4-Oxoquinoline + NADH + O2
1H-3-Hydroxy-4-oxoquinoline + NAD+ + H2O
1H-4-Oxoquinoline + NADPH + O2
1H-3-Hydroxy-4-oxoquinoline + NADP+ + H2O
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1H-4-Oxoquinoline + NADH + O2
1H-3-Hydroxy-4-oxoquinoline + NAD+ + H2O
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1H-4-Oxoquinoline + NADH + O2
1H-3-Hydroxy-4-oxoquinoline + NAD+ + H2O
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1H-4-Oxoquinoline + NADH + O2
1H-3-Hydroxy-4-oxoquinoline + NAD+ + H2O
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1H-4-Oxoquinoline + NADH + O2
1H-3-Hydroxy-4-oxoquinoline + NAD+ + H2O
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1H-4-Oxoquinoline + NADPH + O2
1H-3-Hydroxy-4-oxoquinoline + NADP+ + H2O
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50% of the activity with NADH
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1H-4-Oxoquinoline + NADPH + O2
1H-3-Hydroxy-4-oxoquinoline + NADP+ + H2O
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50% of the activity with NADH
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inducible by 1H-4-oxoquinoline
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inducible by 1H-4-oxoquinoline
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additional information
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additional information
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inducible by 1H-4-oxoquinoline
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inducible by 1H-4-oxoquinoline
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NADH
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required as cofactor
NADPH
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50% of the activity compared to NADH
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4-chloromercuribenzoate
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partial inhibition
iodoacetate
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partial inhibition
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acetone
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15%, 1.2fold activation. Strong decrease in activity above 15%
ethanol
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15%, 1.7fold activation. Strong decrease in activity above 15%
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0.025
1H-4-Oxoquinoline
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brenda
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brenda
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42000
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3 * 42000, SDS-PAGE
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trimer
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3 * 42000, SDS-PAGE
trimer
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3 * 42000, SDS-PAGE
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8.5
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strong inactivation above
7423
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50% loss of enzyme activity after 96 h without additions
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Acetone
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40% loss of activity after 2 h in 15% acetone
Acetone
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40% loss of activity after 2 h in 15% acetone
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Ethanol
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stable for 2 h in 15% ethanol, 50% loss of activity after 24 h
Ethanol
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stable for 2 h in 15% ethanol, 50% loss of activity after 24 h
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Ethylene glycol
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completely stable after 96 h in 50% ethylene glycol
Ethylene glycol
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completely stable after 96 h in 50% ethylene glycol
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additional information
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50% loss of enzyme activity after 96 h without addition of organic solvents
additional information
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50% loss of enzyme activity after 96 h without addition of organic solvents
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Block, D.W.; Lingens, F.
XIII. Purification and properties of 1H-4-oxoquinoline monooxygenase from Pseudomonas putida strain 33/1
Biol. Chem. Hoppe-Seyler
373
249-254
1992
Pseudomonas putida, Pseudomonas putida 33/1
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Bott, G.; Schmidt, M.; Rommel, T.O.; Lingens, F.
Microbial metabolism of quinoline and related compounds. V. Degradation of 1H-4-oxoquinoline by Pseudomonas putida 33/1
Biol. Chem. Hoppe-Seyler
371
999-1003
1990
Pseudomonas putida, Pseudomonas putida 33/1
brenda
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