Information on EC 1.7.1.6 - azobenzene reductase

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The expected taxonomic range for this enzyme is: Bacteria, Eukaryota

EC NUMBER
COMMENTARY hide
1.7.1.6
-
RECOMMENDED NAME
GeneOntology No.
azobenzene reductase
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
N,N-dimethyl-1,4-phenylenediamine + aniline + 2 NADP+ = 4-(dimethylamino)azobenzene + 2 NADPH + 2 H+
show the reaction diagram
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
oxidation
redox reaction
-
-
-
-
reduction
SYSTEMATIC NAME
IUBMB Comments
N,N-dimethyl-1,4-phenylenediamine, aniline:NADP+ oxidoreductase
The reaction occurs in the reverse direction to that shown above. Other azo dyes, such as Methyl Red, Rocceline, Solar Orange and Sumifix Black B can also be reduced [2].
CAS REGISTRY NUMBER
COMMENTARY hide
9029-31-6
-
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
strain AB
UniProt
Manually annotated by BRENDA team
strain AB
UniProt
Manually annotated by BRENDA team
T-105
-
-
Manually annotated by BRENDA team
T-105
-
-
Manually annotated by BRENDA team
strain OY-2
-
-
Manually annotated by BRENDA team
strain SF
-
-
Manually annotated by BRENDA team
ISW 1214
UniProt
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
strain RRK1
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-
Manually annotated by BRENDA team
strain RRK1
-
-
Manually annotated by BRENDA team
C7-D, induced by Acid Orange 7
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-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
strain K12
-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
rhesus monkey
-
-
Manually annotated by BRENDA team
-
-
-
Manually annotated by BRENDA team
meadow vole
-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
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UniProt
Manually annotated by BRENDA team
-
UniProt
Manually annotated by BRENDA team
rabbit
-
-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
Pigeon
-
-
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Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
strain K24
-
-
Manually annotated by BRENDA team
strain KF46, Orange II azoreductase induced by both Orange II and carboxy-Orange II
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-
Manually annotated by BRENDA team
strain S12
-
-
Manually annotated by BRENDA team
strain S12
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-
Manually annotated by BRENDA team
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-
-
Manually annotated by BRENDA team
strain KF46
-
-
Manually annotated by BRENDA team
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
1,2-dimethyl-4(p-carboxyphenylazo)-5-hydroxybenzene + NADPH
1,2-dimethyl-4-amino-5-hydroxybenzene + p-carboxyphenylamine + NADP+
show the reaction diagram
1-(2'-methyl-4'-sulfophenylazo)2-naphthol + NAD(P)H
4-amino-2-methyl-1-benzenesulfonic acid + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
-
-
-
?
1-(2-pyridylazo)-2-naphthol + NADH + H+
?
show the reaction diagram
-
-
-
?
1-(2-pyridylazo)-2-naphthol + NADH + H+
? + NAD+
show the reaction diagram
-
-
-
ir
1-(3'-carboxyphenylazo)-2-naphthol + NAD(P)H
3-amino-1-benzoic acid + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
-
-
-
?
1-(3'-phosphophenylazo)-2-naphthol + NAD(P)H
3-amino-1-benzenephosphate + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
-
-
-
?
1-(3'-sulfophenylazo)-2-naphthol + NAD(P)H
3-amino-1-benzenesulfonic acid + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
-
-
-
?
1-(4'-carboxyphenylazo)-2-hydroxy-6-sulfonaphthalene + NAD(P)H
4-carboxyphenylamine + NAD(P)+ + 1-amino-2-hydroxy-6-sulfonaphthalene
show the reaction diagram
-
-
-
?
1-(4'-carboxyphenylazo)-2-naphthol + NAD(P)H
4-amino-1-benzoic acid + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
1-(4'-carboxyphenylazo)-2-naphthol + NADH
4-amino-1-benzoic acid + NAD+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
-
substrate is carboxy-Orange II
-
-
?
1-(4'-carboxyphenylazo)-4-naphthol + NAD(P)H
4-amino-1-benzoic acid + NAD(P)+ + 1-amino-4-hydroxynaphthalene
show the reaction diagram
1-(4'-nitrophenylazo)-2-hydroxy-6-sulfonaphthalene + NAD(P)H
4-nitrophenylamine + NAD(P)+ + 1-amino-2-hydroxy-6-sulfonaphthalene
show the reaction diagram
-
-
-
?
1-(4'-phosphophenylazo)-2-naphthol + NAD(P)H
4-amino-1-benzenephosphate + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
1-(4'-sulfonaminophenylazo-)2-naphthol + NAD(P)H
4-amino-1-benzenesulfonamine + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
1-(4'-sulfophenylazo)-2-hydroxy-6-carboxynaphthalene + NAD(P)H
4-sulfophenylamine + NAD(P)+ + 1-amino-2-hydroxy-6-carboxynaphthalene
show the reaction diagram
-
-
-
?
1-(4'-sulfophenylazo)-2-hydroxy-6-sulfonaphthalene + NAD(P)H
4-sulfophenylamine + NAD(P)+ + 1-amino-2-hydroxy-6-sulfonaphthalene
show the reaction diagram
-
-
-
?
1-(4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid + NADPH
alpha-naphthylamine-4-sulfonic acid + beta-naphthol-3,6-disulfonic acid + NADP+
show the reaction diagram
1-methyl-1-([1-[(Z)-(methyl[4-[(E)-2-[6'-[(E)-[4-[methyl([4-[(1-methylpyrrolidinium-1-yl)methyl]-1H-1,2,3-triazol-1-yl]methyl)amino]phenyl]diazenyl]-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-3'-yl]ethenyl]phenyl]iminio)methyl]-1H-1,2,3-triazol-4-yl]methyl)pyrrolidinium + FMN + NADH + H+
? + NAD+
show the reaction diagram
-
pro-fluorophore, based on fluorescent rhodamine 110. Upon reduction of the two diazo bonds, substrate shows a green fluorescence suitable for the detection of azoreductases
-
-
?
1-phenylazo-2-hydroxy-6-carboxynaphthalene + NAD(P)H
phenylamine + NAD(P)+ + 1-amino-2-hydroxy-6-carboxynaphthalene
show the reaction diagram
-
-
-
?
1-phenylazo-2-hydroxy-6-sulfonaphthalene + NAD(P)H
phenylamine + NAD(P)+ + 1-amino-2-hydroxy-6-sulfonaphthalene
show the reaction diagram
-
-
-
?
2 ferricyanide + NADPH
2 ferrocyanide + NADP+ + H+
show the reaction diagram
-
-
-
?
2'-carboxy-4-N,N-dimethylazobenzene + NAD(P)H
2-carboxy-1-phenylamine + N,N-dimethyl-1,4-phenylenediamine + NADP+
show the reaction diagram
-
trivial name methyl red
-
?
2,2'-(1,8-dihydroxy-3,6-disulfonaphthalene-2,7-bis-azo)-bis(benzenearsonic acid) + NAD(P)H
?
show the reaction diagram
-
reduced to an anion free radical by an outer membrane azoreductase
-
-
?
2-hydroxy-1,4-naphthoquinone + NADH + H+
?
show the reaction diagram
-
-
-
?
2-hydroxy-1,4-naphthoquinone + NADPH + H+
?
show the reaction diagram
lawsone, quinone reductase activity
-
-
?
2-methyl-1,4-benzoquinone + NADH + H+
?
show the reaction diagram
-
-
-
?
2-methyl-1,4-naphthoquinone + NADH + H+
?
show the reaction diagram
-
menadione, vitamin K3
-
-
?
2-methyl-1,4-naphthoquinone + NADPH + H+
?
show the reaction diagram
menadione, quinone reductase activity
-
-
?
2-[4-(dimethylamino)phenylazo]benzoic acid + NADH
2-aminobenzoic acid + N,N-dimethyl-1,4-phenylenediamine + NAD+
show the reaction diagram
2-[4-(dimethylamino)phenylazo]benzoic acid + NADPH
N,N-dimethyl-p-phenylenediamine + 2-aminobenzoic acid + NADP+
show the reaction diagram
-
-
-
-
?
3-methyl-4-(2-chlorophenylhydrazone)-isoxazol-5-one + NAD(P)H
o-chloroaniline + ?
show the reaction diagram
-
fungicide, trivial name drazoxolon, 90-80% activity with NADH
-
?
4'-diethylaminoazobenzene-2-carboxylic acid + NADH + H+
?
show the reaction diagram
-
ethyl red
-
-
?
4'-dimethylaminoazobenzene-2-carboxylic acid + NADH + H+
2-aminobenzoic acid + N,N'-dimethyl-p-phenylenediamine + NAD+
show the reaction diagram
-
methyl red
-
-
?
4-(4-aminophenylazo)benzenesulfonic acid + NADPH + H+
?
show the reaction diagram
about 25% specific activity compared to balsalazide
-
-
?
4-(4-nitrophenylazo)-1-naphthol + NAD(P)H
?
show the reaction diagram
4-(dimethylamino)azobenzene + 2 NADPH
N,N-dimethyl-1,4-phenylenediamine + aniline + 2 NADP+ + 2 H+
show the reaction diagram
4-[(2-hydroxy-1-naphthalenyl)azo]benzene sulfonic acid + NAD(P)H
4-amino-1-benzenesulfonic acid + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
4-[(4-hydroxy-1-naphthalenyl)azo]benzene sulfonic acid + NAD(P)H
4-amino-benzenesulfonic acid + 1-amino-4-hydroxynaphthalene + NADP+
show the reaction diagram
Acid orange 5 + NADH
?
show the reaction diagram
acid Orange 7 + NAD(P)H
?
show the reaction diagram
-
reduces also Acid Orange 6, 8 and 12, Acid Red 88 and 151, NADH is more effective
-
-
?
acid red 88 + NAD(P)H + H+
?
show the reaction diagram
-
-
-
?
acid red 88 + NADH + H+
?
show the reaction diagram
-
-
-
?
acid red 88 + NADH + H+
? + NAD+
show the reaction diagram
Acid red G + NADH
?
show the reaction diagram
amaranth + ?
?
show the reaction diagram
Amaranth + NADH
?
show the reaction diagram
Amaranth + NADPH
? + NADP+
show the reaction diagram
-
-
-
-
?
Amido black + NADH
?
show the reaction diagram
-
-
-
-
?
anthraquinone-2,6-disulfonate + NADH + H+
?
show the reaction diagram
-
-
-
?
anthraquinone-2,6-disulfonate + NADPH + H+
?
show the reaction diagram
quinone reductase activity
-
-
?
anthraquinone-2-sulfonate + NADH + H+
?
show the reaction diagram
-
-
-
?
anthraquinone-2-sulfonate + NADPH + H+
?
show the reaction diagram
quinone reductase activity
-
-
?
Atul acid black + NADH
?
show the reaction diagram
-
-
-
-
?
balsalazide + NADPH + H+
?
show the reaction diagram
100% specific activity
-
-
?
balsalzide + NADH + H+
? + NAD+
show the reaction diagram
-
-
-
-
?
BHQ-10 + NADPH + H+
? + NADP+
show the reaction diagram
congo red + NAD(P)H + H+
?
show the reaction diagram
-
-
-
?
Congo red + NADH + H+
? + NAD+
show the reaction diagram
di-sodium-(R)-benzyl-azo-2,7-dihydroxy-3,6-disulfonyl-naphthaline + NADH
?
show the reaction diagram
direct blue 14 + ?
o-tolidine + ?
show the reaction diagram
direct blue 15 + ?
?
show the reaction diagram
direct blue 15 + FAD + NADH + H+
? + NAD+
show the reaction diagram
-
highest activity in presence of both NADH and FAD
-
-
?
direct blue 15 + NAD(P)H
3,3'-dimethoxybenzidine + 1-hydroxy-2,8-diamino-3,6-naphthalenedisulfonic acid + NAD(P)+
show the reaction diagram
direct blue 15 + NAD(P)H + H+
?
show the reaction diagram
-
-
-
?
direct blue 15 + NADH + H+
? + NAD+
show the reaction diagram
Direct blue 71 + NADH
?
show the reaction diagram
direct red 28 + NADH + H+
benzidine + 4-aminobiphenyl + NAD+
show the reaction diagram
Disperse yellow + NADH
?
show the reaction diagram
-
85% of the activity with Methyl red
-
-
?
Eriochrome blue black + NADH
?
show the reaction diagram
-
-
-
-
?
ethyl red + NADH + H+
?
show the reaction diagram
-
-
-
?
ethyl red + NADH + H+
? + NAD+
show the reaction diagram
best substrate, 182% of the activity with methyl red at 30°C
-
-
ir
fast yellow + ?
?
show the reaction diagram
flame orange + NADPH + H+
? + NADP+
show the reaction diagram
golden yellow + NADH + H+
?
show the reaction diagram
Janus green B + NADPH + H+
? + NADP+
show the reaction diagram
methyl orange + ?
?
show the reaction diagram
Methyl orange + NADH
?
show the reaction diagram
methyl orange + NADH + H+
?
show the reaction diagram
-
-
-
?
methyl orange + NADPH + H+
? + NADP+
show the reaction diagram
methyl red + ?
?
show the reaction diagram
-
-
-
-
?
methyl red + NAD(P)H + H+
?
show the reaction diagram
methyl red + NADH
2-aminobenzoic acid + N,N-dimethyl-1,4-phenylenediamine + NAD+
show the reaction diagram
-
-
-
-
?
methyl red + NADH + H+
?
show the reaction diagram
methyl red + NADH + H+
? + NAD+
show the reaction diagram
methyl red + NADH + H+
N,N-dimethyl-p-phenylenediamine and 2-aminobenzoic acid + NAD+
show the reaction diagram
F0PC48
-
-
-
?
methyl red + NADH + H+
o-aminobenzoic acid + N,N'-dimethyl-p-phenylenediamine + NAD+
show the reaction diagram
-
-
-
ir
methyl red + NADPH + H+
?
show the reaction diagram
methyl red + NADPH + H+
? + NADP+
show the reaction diagram
Mordant black 9 + NADH
?
show the reaction diagram
-
38% of activity
-
-
?
Mordant brown 96 + NADH
?
show the reaction diagram
-
28% of activity
-
-
?
N,N-dimethyl-1,4-phenylenediamine + aniline + 2 NADP+
4-(dimethylamino)azobenzene + 2 NADPH + 2 H+
show the reaction diagram
NADPH + 9,10-phenanthrenequinone
NADP+ + 9,10-phenanthrenequinol
show the reaction diagram
-
-
-
?
NADPH + H+ + 1,4-benzoquinone
NADP+ + 1,4-benzoquinol
show the reaction diagram
-
-
-
?
NADPH + H+ + 1,4-naphthoquinone
NADP+ + 1,4-naphthoquinol
show the reaction diagram
-
-
-
?
NADPH + H+ + oxidized 2,6-dichlorophenolindophenol
NADP+ + reduced 2,6-dichlorophenolindophenol
show the reaction diagram
-
-
-
?
NADPH + oxidized cytochrome c
NADP+ + reduced cytochrome c
show the reaction diagram
-
in the presence of menadione as electron carrier
-
?
naphthalene fast orange 2G + ?
?
show the reaction diagram
Navitan fast blue S5R + NADH
metanilic acid + 1,4-diamino naphtalene + peri acid + NAD+
show the reaction diagram
-
-
-
-
?
neoprontosil + ?
?
show the reaction diagram
new coccine + NADPH
?
show the reaction diagram
new cossin + NADH + H+
?
show the reaction diagram
-
-
-
?
nitrofurazone + NAD(P)H + H+
?
show the reaction diagram
-
-
-
-
?
o-methyl red + NADPH + H+
? + NADP+
show the reaction diagram
-
-
-
-
?
olsalazine + NADPH + H+
?
show the reaction diagram
less than 10% specific activity compared to balsalazide
-
-
?
Orange G + NADH
?
show the reaction diagram
Orange I + NADH
?
show the reaction diagram
orange I + NADH + H+
?
show the reaction diagram
-
-
-
?
orange I + NADH + H+
? + NAD+
show the reaction diagram
-
-
-
ir
Orange I + NADPH
?
show the reaction diagram
orange II + ?
?
show the reaction diagram
orange II + NAD(P)H + H+
?
show the reaction diagram
-
-
-
?
orange II + NADH + H+
?
show the reaction diagram
-
-
-
?
orange II + NADH + H+
? + NAD+
show the reaction diagram
orange II + NADH + H+
sulfanilic acid + 1-amino-2-naphthol + NAD+
show the reaction diagram
-
-
-
-
?
Orange II + NADPH
? + NADP+
show the reaction diagram
-
-
-
-
?
oxidized methyl red + NADH + H+
reduced methyl red + NAD+
show the reaction diagram
-
-
-
-
?
p-aminoazobenzene + ?
aniline + p-phenylenediamine + ?
show the reaction diagram
-
-
-
-
?
p-methyl red + NADH + H+
?
show the reaction diagram
-
-
-
-
?
Ponceau BS + NAD(P)H + H+
?
show the reaction diagram
-
-
-
?
Ponceau BS + NADH
?
show the reaction diagram
-
-
-
-
?
ponceau BS + NADH + H+
? + NAD+
show the reaction diagram
Ponceau BS + NADPH
? + NADP+
show the reaction diagram
-
-
-
-
?
Ponceau S + NADH
?
show the reaction diagram
-
-
-
-
?
Ponceau S + NADPH
? + NADP+
show the reaction diagram
-
-
-
-
?
ponceau SX + NAD(P)H
?
show the reaction diagram
Ponceaux SX + NAD(P)H
?
show the reaction diagram
-
-
-
-
?
Red dye I + NADH
?
show the reaction diagram
Red dye II + NADH
?
show the reaction diagram
-
-
-
?
Red dye III + NADH
?
show the reaction diagram
-
-
-
?
red RB + NADH + H+
?
show the reaction diagram
remazol orange + NADH + H+
?
show the reaction diagram
remazol red + NADH + H+
?
show the reaction diagram
remazol yellow + NADH + H+
?
show the reaction diagram
Rocceline + NADPH
?
show the reaction diagram
-
-
-
-
?
Solar Orange + NADPH
?
show the reaction diagram
sulfasalazine + NADPH + H+
?
show the reaction diagram
about 20% specific activity compared to balsalazide
-
-
?
sulfasalazine + NADPH + H+
? + NADP+
show the reaction diagram
-
-
-
-
?
Sumifix Black B + NADPH
?
show the reaction diagram
-
-
-
-
?
sunset yellow + ?
?
show the reaction diagram
sunset yellow FCF + NADH + H+
?
show the reaction diagram
-
-
-
?
tartrazine + ?
?
show the reaction diagram
tartrazine + NAD(P)H
?
show the reaction diagram
-
-
-
-
?
Tropaeolin + NADH
?
show the reaction diagram
-
-
-
-
?
Trypan blue + NADH
?
show the reaction diagram
-
50% of the activity with Methyl red
-
-
?
additional information
?
-
NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
1-(4'-carboxyphenylazo)-2-naphthol + NAD(P)H
4-amino-1-benzoic acid + NAD(P)+ + 1-amino-2-hydroxynaphthalene
show the reaction diagram
1-(4'-carboxyphenylazo)-4-naphthol + NAD(P)H
4-amino-1-benzoic acid + NAD(P)+ + 1-amino-4-hydroxynaphthalene
show the reaction diagram
4-(dimethylamino)azobenzene + 2 NADPH
N,N-dimethyl-1,4-phenylenediamine + aniline + 2 NADP+ + 2 H+
show the reaction diagram
additional information
?
-
-
important for the conversion of azo dyes in the gastrointestinal tract
-
-
-
COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
flavin
riboflavin
additional information
-
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Zn2+
stimulates activity
INHIBITORS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
3,3'-methylene-bis(4-hydroxycoumarin)
-
dicoumarol
4-Dimethylaminoazobenzene
-
-
Ag+
-
1 mM, 92% inhibition
Al3+
-
2 mM, 47.9% residual activity
Cd2+
-
IC50: 0.13 mM
CO
-
noncompetitive vs. amaranth
dicoumarol
fatty acids
-
oxidized unsaturated
Fe3+
-
1 mM, 85% inhibition
ferric chloride
-
1 mM leads to 80% inhibition, 2.5 mM leads to 98% inhibition
Methyl red
-
substrate inhibition above 0.08 mM
Mg2+
-
2 mM, 81% residual activity
NaCl
-
more than 40% of maximum activity up to 2.5 M
Orange I
-
substrate inhibition
Orange II
-
substrate inhibition at high concentration
oxygen
-
presence of oxygen in the assay reduces the activity
SDS
-
1 mM, 50% inhibition
sodium dodecylsulfate
-
1 mM, 53% residual activity
additional information
-
ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
2-methylhydroquinone
-
0.5 mM, increase in expression of azoR mRNA relative to the expression at zero time before stress is applied, at 10 min 46.0, at 20 min 129.1
-
catechol
-
6 mM, increase in expression of azoR mRNA relative to the expression at zero time before stress is applied, at 10 min 15.6, at 20 min 31.9
Diamide
-
1 mM, increase in expression of azoR mRNA relative to the expression at zero time before stress is applied, at 10 min 11.4, at 20 min 8.1
furazolidone
-
-
H2O2
-
1 mM, increase in expression of azoR mRNA relative to the expression at zero time before stress is applied, at 10 min 0.9, at 20 min 0.6, 10 mM, 10 min 3.0, 20 min 1.9
menadione
-
0.3 mM, increase in expression of azoR mRNA relative to the expression at zero time before stress is applied, at 10 min 25.5, at 20 min 13.3
methylviologen
-
activation
Nitrofurantoin
-
-
nitrofurazone
-
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.12
1,2-dimethyl-4-(p-carboxyphenylazo)-5-hydroxy-benzene
-
-
0.0013
1-(2'-methyl-4-sulfophenylazo)-2-naphthol
-
-
0.0137
1-(2'-sulfophenylazo)-2-naphthol
-
-
0.0015
1-(3'-carboxyphenylazo)-2-naphthol
-
-
0.0105
1-(3'-phosphophenylazo)-2-naphthol
-
-
0.0018
1-(3'-sulfophenylazo)-2-naphthol
-
-
0.013
1-(4'-carboxyphenylazo)-2-hydroxy-6-carboxynaphthalene
-
-
0.0198
1-(4'-carboxyphenylazo)-2-hydroxy-6-sulfonaphthalene
-
-
0.008
1-(4'-carboxyphenylazo)-2-naphthol
-
-
0.0024
1-(4'-carboxyphenylazo)-4-naphthol
-
-
0.0018
1-(4'-nitrophenylazo)-2-hydroxy-6-sulfonaphthalene
-
-
0.0052
1-(4'-phosphophenylazo)-2-naphthol
-
-
0.0148
1-(4'-sulfoaminophenylazo)-2-naphthol
-
-
0.04
1-(4'-sulfophenyl-N-methylhydrazo)-4-naphthol
-
-
0.0132
1-(4'-sulfophenylazo)-2-hydroxy-6-carboxynaphthalene
-
-
0.017
1-(4'-sulfophenylazo)-2-hydroxy-6-sulfonaphthalene
-
-
0.001
1-(4'-sulfophenylazo)-2-naphthol
-
-
0.204
1-(4'-sulfophenylazo)-4-anthranol
-
-
0.0026
1-(4'-sulfophenylazo)-4-naphthol
-
-
0.0014
1-phenylazo-2-hydroxy-6-carboxynaphthalene
-
-
0.0009
1-phenylazo-2-hydroxy-6-sulfonaphthalene
-
-
0.0346 - 0.0873
2-Hydroxy-1,4-naphthoquinone
1.704
2-methyl-1,4-benzoquinone
-
-
0.0162
2-methyl-1,4-naphthoquinone
-
-
0.024 - 0.42
2-[4-(dimethylamino)phenylazo]benzoic acid
0.0102 - 0.101
4'-dimethylaminoazobenzene-2-carboxylic acid
0.0146
9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonic acid
-
-
0.0081
9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid
-
-
0.001
acid Orange 7
-
after induction with Acid Orange 7
0.093 - 0.45
Acid Orange 8
0.004
Acid Red 151
-
after induction with Acid Orange 7
0.003 - 0.009
acid Red 88
0.034
Amaranth
-
-
0.0161
anthraquinone-2,6-disulfonate
-
-
0.0133
anthraquinone-2-sulfonate
-
-
0.0986 - 0.1029
balsalazide
0.055 - 2.447
balsalzide
0.059
BHQ-10
-
pH not specified in the publication, 22°C
0.00645
CO
-
-
0.005
Direct blue 15
-
pH not specified in the publication, temperature not specified in the publication
0.00018
FAD
-
pH not specified in the publication, temperature not specified in the publication
0.51
flame orange
-
pH not specified in the publication, 22°C
0.3
Methyl orange
-
pH not specified in the publication, 22°C
0.00053 - 1.21
Methyl red
0.003 - 4.35
NADH
0.001 - 15
NADPH
0.063
Navitan fast blue S5R
-
pH 7.0, room temperature
0.1 - 0.65
nitrofurazone
0.0097
o-methyl red
-
pH not specified in the publication, 22°C
0.003 - 0.17
Orange I
0.1006 - 0.867
p-methyl red
0.004 - 0.005
ponceau SX
0.22 - 1.118
sulfasalazine
TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
5.8 - 345
2-Hydroxy-1,4-naphthoquinone
72
2-methyl-1,4-benzoquinone
Escherichia coli
-
-
3278
2-methyl-1,4-naphthoquinone
Rhodobacter sphaeroides
-
-
2.6
9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonic acid
Escherichia coli
-
-
1.1
9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid
Escherichia coli
-
-
211.2
anthraquinone-2,6-disulfonate
Rhodobacter sphaeroides
-
-
218.4
anthraquinone-2-sulfonate
Rhodobacter sphaeroides
-
-
24.1 - 36.8
balsalazide
0.2 - 20
balsalzide
1 - 245
Methyl red
10 - 25.2
NADH
33.6 - 35.5
NADPH
0.5 - 2.6
sulfasalazine
kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.0019 - 14580
Methyl red
989
1.5 - 7030
NADH
8
30
NADPH
Shewanella oneidensis
Q8E990
pH 6.5, 25°C
5
Ki VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.006
CO
-
-
0.00003 - 0.0876
dicoumarol
IC50 VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.13
Cd2+
Pantoea agglomerans
-
IC50: 0.13 mM
0.11
Fe2+
Pantoea agglomerans
-
IC50: 0.11 mM
0.17
Hg2+
Pantoea agglomerans
-
IC50: 0.17 mM
0.43
Mn2+
Pantoea agglomerans
-
IC50: 0.43 mM
0.28
Zn2+
Pantoea agglomerans
-
IC50: 0.28 mM
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.00191
-
activity in liver microsomes
0.0028
-
continuous assay for hepatic microsomal azo reductase
0.0035
-
activity in caecal suspension with amaranth; activity in liver microsomes with amaranth
0.004
-
activity in liver microsomes with carmoisine; activity in liver microsomes with Fast Red E
0.008
-
activity in liver microsomes with Ponceau 4R
0.011
-
activity in liver microsomes after flavin treatment
0.014
-
purification octyl-sepharose 4 fast flow
0.015
-
crude cell extract
0.045
-
activity in liver supernatant fraction
0.05
-
azoreductase II, with tartrazine
0.053
-
activity in liver supernatant fraction
0.054
-
activity in caecal suspension with carmoisine
0.06
-
activity in liver supernatant fraction
0.065
-
azoreductase II, with orange II
0.067
-
activity in liver supernatant fraction
0.07
-
azoreductase II, with amaranth
0.076
-
activity in caecal suspension with Fast Red E
0.087
-
activity in liver supernatant fraction
0.112
-
azoreductase I, with orange II
0.129
-
activity in caecal suspension with Ponceau 4R
0.14
-
after purification
0.19
-
azoreductase I, with amaranth
0.2
cosubstrate NADPH, pH 7.4, 30°C
0.212
-
azoreductase I, with tartrazine
0.224
-
purification DEAE Bio gel
0.315
-
azoreductase II, with ponceau SX
0.32
-
azoreductase I, with ponceau SX
0.626
-
purification step affinity gel
0.65
extract from host strain with Methyl red and NADH as substrates, pH 8.0, 40°C
1.1
purified recombinant enzyme with Red dye III and NADH as substrates, pH 8.0, 40°C
2.8
purified enzyme, pH 7.1 with 1-(4'-carboxyphenylazo)-4-naphthol and NADH as substrates
2.9
crude extract, using Orange I as the substrate with NADH as proton donor, pH 6.8, 45°C
3.575
substrate direct Blue 15, cofactor NADPH
3.58
substrate direct blue 15, cosubstrate NADPH, pH 7.0, 25°C
3.699
substrate direct Blue 15, cofactor NADH
3.7
substrate direct blue 15, cosubstrate NADH, pH 7.0, 25°C
5.8
-
crude cell extract
7.6
-
recombinant enzyme at 50°C with roccelin
8.5
extract from Escherichia coli containing recombinant enzyme with Methyl red and NADH as substrates, pH 8.0, 40°C
10.1
purified enzyme, using Orange I as the substrate with NADH as proton donor, pH 6.8, 45°C
10.8
purified enzyme, pH 7.1 with 1-(4'-carboxyphenylazo)-2-naphthol and NADH as substrates
11.7
-
native enzyme at 70°C with roccelin
12.6
purified recombinant enzyme with Red dye II and NADH as substrates, pH 8.0, 40°C
15.4
-
cofactor FAD, pH not specified in the publication, temperature not specified in the publication
17
substrate Congo red, cosubstrate NADPH, pH 7.0, 25°C
17.02
substrate congo red, cofactor NADPH
18.18
substrate orange II, cofactor NADH
18.2
substrate orange II, cosubstrate NADH, pH 7.0, 25°C
20.3
purified recombinant enzyme with Red dye I and NADH as substrates, pH 8.0, 40°C
20.7
substrate Ponceau BS, cofactor NADH; substrate ponceau BS, cosubstrate NADH, pH 7.0, 25°C
23.2
substrate acid red 88, cosubstrate NADPH, pH 7.0, 25°C
23.23
substrate acid red 88, cofactor NADPH
24.29
substrate methyl red, cofactor NADPH
24.3
substrate methyl red, cosubstrate NADPH, pH 7.0, 25°C
25.8
cosubstrate NADH, pH 7.4, 30°C
26
-
pH not specified in the publication, temperature not specified in the publication
26.9
-
cofactor FMN, pH not specified in the publication, temperature not specified in the publication
38.2
substrate methyl red
38.6
substrate methyl red
63.9
-
purified enzyme, pH 7.1, 23°C, with Methyl red and NADH as substrates
76.6
substrate acid red 88, cosubstrate NADH, pH 7.0, 25°C
76.63
substrate acid red 88, cofactor NADH
78.9
purified recombinant enzyme with Methyl red and NADH as substrates, pH 8.0, 40°C
156.1
pH 6.5, 25°C
184.6
presence of 25 microM FMN, pH 6.5, 25°C
505
-
purification step Cibacron blue agarose 3G
626
-
after 209fold purification, using methyl red and NADPH as substrates, in 50 mM potassium phosphate buffer pH 7.0 at 25°C
682
substrate Congo red, cosubstrate NADH, pH 7.0, 25°C
682.2
substrate congo red, cofactor NADH
5095
substrate methyl red, cofactor NADH; substrate methyl red, cosubstrate NADH, pH 7.0, 25°C
17830
-
orange II azoreductase, strain KF46
additional information
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
5 - 8
-
Orange II + NADH
5.5 - 6
6 - 6.5
-
substrates BHQ-10 and o-methyl red
6
-
substrate methyl orange
6.8
-
carboxy-Orange I
7 - 8
-
depending on the substrate
7.1
-
activity assay
7.4
activity assay; activity assay
8 - 9
-
-
8.3
-
flame orange reduction rate increases up to at least pH 8.3
8.5
-
substrate 2-methyl-1,4-naphthoquinone, quinone reductase activity
additional information
-
the reduction rate is both dye and pH specific
pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4 - 10
-
pH 4.0: about 10% activity, pH 10.0: about 20% activity
4 - 7
-
pH 4.0: about 25% activity, pH 7.0: about 20% activity
5.4 - 7.5
-
more than 80% of maximum activity
5.5 - 7.5
more than 50% of maximum activity
8 - 9
-
maximal activity
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
22
activity assay at room temperature
23
-
activity assay at room temperature
30
-
activity assay
35 - 40
TEMPERATURE RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
5 - 70
-
at 5°C and 70°C: about 55% of maximal activity
10 - 50
-
more than 75% of maximum activity
20 - 50
pI VALUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4.8
-
calculated
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
18700
SDS-PAGE, enzyme from host strain
20200
-
1 * 20200, strain K24, SDS-PAGE, Orange I azoreductase
20560
calculated from the deduced amino acid sequence
21250
-
4 * 21250
21300
calculated from amino acid sequence
21500
-
strain KF 24, gel filtration, Orange I azoreductase
22000
SDS-PAGE and gel filtration
22600
-
4 * 22600, SDS-PAGE
23600
2 * 23600, SDS-PAGE
30280
calculated from the deduced amino acid sequence
32000
-
strain KF 46, gel filtration, Orange II azoreductase
43000
-
gel filtration
44000
SDS-PAGE, recombinant GST-fusion protein
45000
-
gel filtration
52000
-
gel filtration
53000
-
azoreductase I, gel filtration
58000
-
determined by SDS-PAGE
60000
determined by SDS-PAGE
61600
-
SDS-PAGE
62000
-
-
90400
-
gel filtration
SUBUNITS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
homodimer
homotetramer
-
4 * 21250
monomer
tetramer
Crystallization/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
binding site analysis when enzyme is complexed with FMN. Amino acids Thr9, Arg11, Arg15, Thr16, Ser76, Val104, Ala105 and Gly106 are involved in hydrophilic interactions with the ligand, whereas the residues Glu73, Tyr74, His75 andAla105 exhibit hydrophobic interactions, too. Residue Gly110 has no interactiions with the ligand
modeling of structure. Binding mode shows that the benzoic acid moiety of substrate methyl red and the nicotinamide ring of NADH are not parallel to the flavin isoalloxazine ring, but lay against it at angles of about 45 and 35 degrees, respectively. The adenine ribose moiety of NADH is surrounded by loop l2 on chain B and alpha3 on chain A in a typical Rossmann fold
-
hanging drop vapour diffusion method using 10 mM Tris-HCl (pH 8.0), 1 mM FMN, and an equal volume of reservoir solution containing 200 mM NaCl, 100 mM CAPS2 (pH 10.5), 20% (w/v) polyethylene glycol 8000, 20% (v/v) 1,4-dioxane, and 4 mM menadione
-
the structures of oxidized and reduced AzoR, and in complex with the inhibitor 3,3'-methylene-bis(4-hydroxycoumarin) are determined at resolutions from 1.4 to 2.3 A
-
homology modeling and multiple sequence alignment shows conserved regions at different stretches from amino acid residues 1-11, 40-57, 82-120 and 161-177
mutant enzyme Y131F in the presence of methyl red, sitting drop vapor diffusion method, using 0.1 M sodium acetate pH 4.5, 1.0 M diammonium hydrogen phosphate
pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
6 - 8
-
5°C, 7 days, stable
394295
TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
35
-
stable below
42 - 55
whilst wild type AzoR1 loses 50% of its activity after incubation for 10 min at 55°C, mutant enzyme Y131F loses 50% of its activity after exposure to 42°C for 10 min, both enzymes are inactive after 10 min at 80°C
50
-
pH 7, half life: 1 d
80
-
10 min, 45% loss of activity
ORGANIC SOLVENT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Acetone
30%, no significant loss of activity
dimethyl sulfoxide
30%, no significant loss of activity
Ethanol
20%, no significant loss of activity
isopropanol
20%, no significant loss of activity
Methanol
30%, no significant loss of activity
propanol
10%, no significant loss of activity
OXIDATION STABILITY
ORGANISM
UNIPROT
LITERATURE
inactivation by oxygen
STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
-20°C, 50% glycerol
-
-20°C, 50% glycerol, several months
-
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
a Cibacron blue agarose 3G column is used
-
by anion-exchange chromatography and by gel filtration
-
cell extracts of Enterococcus faecalis are prepared, AzoA is purified by hydrophobic, anion exchange and affinity chromatography
-
crude cell extracts are applied on a DEAE cellulose column, subsequently to an ammonium sulfate precipitation the enzyme solution is applied on a Butyl Toyopearl 650M column, finally a Sephacryl S200 column is used; crude cell extracts are applied on a DEAE cellulose column, subsequently to an ammonium sulfate precipitation the enzyme solution is applied on a Phenyl Toyopearl 650M column, finally a Sephacryl S200 column is used
crude protein extracts from Bacillus velezensis are prepared
HiPrep 16/10 Q XL anion-exchange column chromatography and HiLoad 26/60 Superdex 200 gel fltration
-
His-tagged proteins are purified by gravity-flow chromatography using nickel-nitrilotriacetic acid-agarose
-
Ni-NTA column chromatography
octyl Sepharose column chromatography, DEAE Bio-gel agarose column chromatography, and Affi-gel Blue gel filtration
-
phenyl Sepharose column chromatography and HiPrep SP XL column chromatography
recombinant enzyme
the GST-AzoR protein is purified by glutathione Sepharose 4B, the GST tag is removed by digestion with thrombin
-
via the hexa-histidine tag
Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli
-
expressed in Escherichia coli BL21(DE3)
expressed in Escherichia coli BL21(DE3) pLysS cells
expressed in Escherichia coli BL21(DE3)pLysS using a phage T7-promotor system
expressed in Escherichia coli BL21(DE3)pLysS using a phage T7-promotor system, no in vivo activity in recombinant strains due to missing azo dye uptake system
expressed in Escherichia coli BL21-Gold(DE3)pLysS
-
expressed in Escherichia coli BL21-Gold(DE3)pLysS cells
expression in Esacherichia coli
-
expression in Escherichia coli
expression in Escherichia coli; into the pCR2.1-TOPO vector and subsequently into pET15b for expression in Escherichia coli NovaBlue DE3 cells
into the vector pET-11a for expression in Escherichia coli BL21-Gold DE3 pLysS cells
-
into the vector pET-22b for expression in Escherichia coli BL21DE3 cells
-
into the vector pET32a for recombinant expression in Escherichia coli DH5alpha cells
-
into the vector pGEM-T and subsequently into pET3a for expression in Escherichia coli BL21DE3 cells; into the vector pGEM-T and subsequently into pET3a for expression in Escherichia coli BL21DE3 cells
into the vector pGEX 4T-1 for transformation into Escherichia coli JM109 cells
-
into the vector pGEX 4T1
-
into the vector pGEX-4T-1
-
EXPRESSION
ORGANISM
UNIPROT
LITERATURE
in presence of balsalazide, expression of isoform AzoR1 increases by about 50%; in presence of methyl red or balsalzide, expression of isoform AzoR2 increases 3.5- and 2.5fold, respectively
-
in presence of methyl red, expression of isoform AzoR1 increases more than 50%
-
ENGINEERING
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
A123F
-
36% of wild-type activity
D184G
-
complete loss of activity
E16G
-
46% of wild-type activity
F127G
-
complete loss of activity
L59G
-
10% of wild-type activity
N106A
-
3% of wild-type activity
N121A
-
170% of wild-type activity
R18G
-
9% of wild-type activity
R21G
-
382% of wild-type activity
R66A
-
47% of wild-type activity
V122Y
-
14% of wild-type activity
W105A
-
mutant, complete loss of both affinity for FMN and enzyme activity
W105F
-
mutant, lower Vmax value, decrease 30.6fold
W105G
-
mutant, complete loss of both affinity for FMN and enzyme activity
W105H
-
mutant, lower Vmax value, decrease 8.2fold
W105Q
-
mutant, lower Vmax value, decrease 68.2fold
W105Y
-
mutant, substitution does not significantly decrease the Vmax of the enzyme, 22% reduction
W62A
-
35% of wild-type activity
Y129G
-
complete loss of activity
F162A
-
Phe-162 is chosen because it is predicted to participate in the substrate binding on top of the isoalloxazine ring, as observed in the AzoR-inhibitor structure
R59A
-
the results indicate that Arg-59 decides the substrate specificity of AzoR
Y120A
-
Tyr-120 is chosen because it is predicted to participate in the substrate binding on top of the isoalloxazine ring, as observed in the AzoR-inhibitor structure
Y131F
the mutant shows increased specific activity with methyl red and reduced specific activity with balsalazide compared to the wild type enzyme
H75N
-
mutation decreases the binding of methyl red and nitrofurazone and has no effect on the bining of NADPH
K109A
-
K109 might only be involved in the binding of the 2'-phosphate group of NADPH and have no effect on the binding of NADH
K109H
-
K109 might only be involved in the binding of the 2'-phosphate group of NADPH and have no effect on the binding of NADH
Y74W
-
mutation decreases the binding of methyl red and nitrofurazone and has no effect on the bining of NADPH
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
analysis
-
pro-fluorophore 1-methyl-1-([1-[(Z)-(methyl[4-[(E)-2-[6'-[(E)-[4-[methyl([4-[(1-methylpyrrolidinium-1-yl)methyl]-1H-1,2,3-triazol-1-yl]methyl)amino]phenyl]diazenyl]-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-3'-yl]ethenyl]phenyl]iminio)methyl]-1H-1,2,3-triazol-4-yl]methyl)pyrrolidinium shows a green fluorescence upon reduction of the two diazo bonds suitable for the detection of azoreductases
degradation
environmental protection
industry
Show AA Sequence (370 entries)
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