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Information on EC 1.14.13.92 - phenylacetone monooxygenase and Organism(s) Thermobifida fusca and UniProt Accession Q47PU3

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IUBMB Comments
A flavoprotein (FAD). NADH cannot replace NADPH as coenzyme. In addition to phenylacetone, which is the best substrate found to date, this Baeyer-Villiger monooxygenase can oxidize other aromatic ketones [1-(4-hydroxyphenyl)propan-2-one, 1-(4-hydroxyphenyl)propan-2-one and 3-phenylbutan-2-one], some alipatic ketones (e.g. dodecan-2-one) and sulfides (e.g. 1-methyl-4-(methylsulfanyl)benzene).
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Thermobifida fusca
UNIPROT: Q47PU3
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Word Map
The taxonomic range for the selected organisms is: Thermobifida fusca
The enzyme appears in selected viruses and cellular organisms
Synonyms
pamo, phenylacetone monooxygenase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Baeyer-Villiger monooxygenase
-
-
M-PAMO
-
mutant M446G of phenylacetone monooxygenase, phenylacetone monooxygenase mutein
phenylacetone monooxygenase
-
-
additional information
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
phenylacetone + NADPH + H+ + O2 = benzyl acetate + NADP+ + H2O
show the reaction diagram
phenylacetone + NADPH + H+ + O2 = benzyl acetate + NADP+ + H2O
show the reaction diagram
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Baeyer-Villiger reaction
-
SYSTEMATIC NAME
IUBMB Comments
phenylacetone,NADPH:oxygen oxidoreductase
A flavoprotein (FAD). NADH cannot replace NADPH as coenzyme. In addition to phenylacetone, which is the best substrate found to date, this Baeyer-Villiger monooxygenase can oxidize other aromatic ketones [1-(4-hydroxyphenyl)propan-2-one, 1-(4-hydroxyphenyl)propan-2-one and 3-phenylbutan-2-one], some alipatic ketones (e.g. dodecan-2-one) and sulfides (e.g. 1-methyl-4-(methylsulfanyl)benzene).
CAS REGISTRY NUMBER
COMMENTARY hide
1005768-90-0
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
2-methylcyclohexanone + NADPH + H+ + O2
? + NADP+ + H2O
show the reaction diagram
no activity with wild-type PAMO, but low to increased activity with enzyme mutants
-
-
?
2-octanone + NADPH + H+ + O2
? + NADP+ + H2O
show the reaction diagram
-
-
-
?
2-octanone + NADPH + H+ + O2
heptylacetate + NADP+ + H2O
show the reaction diagram
-
-
-
?
2-phenylcyclohexanone + NADPH + H+ + O2
? + NADP+ + H2O
show the reaction diagram
very low activity with wild-type PAMO, significantly increased activity with enzyme mutant P253F/G254A/R258M/L443F
-
-
?
2-phenylpropionaldehyde + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
?
4-methylcyclohexanone + NADPH + H+ + O2
? + NADP+ + H2O
show the reaction diagram
no activity with wild-type PAMO, but low to increased activity with enzyme mutants
-
-
?
cycloheptanone + NADPH + H+ + O2
? + NADP+ + H2O
show the reaction diagram
no activity with wild-type PAMO, but low to increased activity with enzyme mutants
-
-
?
cyclohexanone + NADPH + H+ + O2
epsilon-caprolactone + NADP+ + H2O
show the reaction diagram
cyclopentanone + NADPH + H+ + O2
5-valerolactone + NADP+ + H2O
show the reaction diagram
phenylacetone + NADPH + H+ + O2
benzyl acetate + NADP+ + H2O
show the reaction diagram
thioanisole + NADPH + H+ + O2
?
show the reaction diagram
the asymmetric oxidation of thioanisole to sulfoxide is accompanied by the overoxidation to achiral sulfone
-
-
?
(2-methylphenyl)acetone + NADPH + O2
? + NADP+ + O2
show the reaction diagram
-
-
-
-
?
(2R,3S)-3-methyl-2-pentylcyclopentanone + NADPH + H+ + O2
?
show the reaction diagram
-
less than 5% conversion
-
-
?
(R)-1-acetoxy-phenylacetone + NADPH + O2
(R)-1-hydroxy-1-phenylacetone + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
(R)-2-acetoxyphenylacetonitrile + NADPH + H+ + O2
?
show the reaction diagram
-
enantioselective reaction
-
-
?
(R)-3-(4-bromophenyl)butan-2-one + NADPH + H+ + O2
?
show the reaction diagram
-
enantioselective reaction
-
-
?
(S)-1-(3-trifluoromethylphenyl)ethyl acetate + NADPH + H+ + O2
?
show the reaction diagram
-
enantioselective reaction
-
-
?
(S)-nicotine + NADPH + O2
?
show the reaction diagram
-
-
-
-
?
1-indanone + NADPH + H+ + O2
1-isochromanone + NADP+ + H2O
show the reaction diagram
-
reaction product is only synthesized by the mutant M446G of phenylacetone monooxygenase of Thermobifida fusca, reaction is performed in presence of 10 U glucose-6-phosphate dehydrogenase and glucose-6-phosphate to recover NADPH
-
-
?
1-[3-(benzylselanyl)phenyl]ethanone + NADPH + H+ + O2
1-(3-(benzylseleninyl)phenyl)ethanone + NADP+ + H2O
show the reaction diagram
-
more than 99% conversion
-
-
?
1-[3-(methylselanyl)phenyl]ethanone + NADPH + H+ + O2
1-(3-(methylseleninyl)phenyl)ethanone + NADP+ + H2O
show the reaction diagram
-
76% conversion
-
-
?
1-[4-(benzylselanyl)phenyl]ethanone + NADPH + H+ + O2
1-(4-(benzylseleninyl)phenyl)ethanone + NADP+ + H2O
show the reaction diagram
-
more than 99% conversion
-
-
?
1-[4-(methylselanyl)phenyl]ethanone + NADPH + H+ + O2
1-(4-(methylseleninyl)phenyl)ethanone + NADP+ + H2O
show the reaction diagram
-
more than 99% conversion
-
-
?
2-benzylcyclopentanone + NADPH + H+ + O2
?
show the reaction diagram
-
about 10% conversion
-
-
?
2-dodecanone + NADPH + O2
? + NADP+
show the reaction diagram
-
-
-
-
?
2-indanone + NADPH + H+ + O2
3-isochromanone + NADP+ + H2O
show the reaction diagram
-
substrate is only accepted by the mutant M446G of phenylacetone monooxygenase of Thermobifida fusca, reaction is performed in presence of 10 U glucose-6-phosphate dehydrogenase and glucose-6-phosphate to recover NADPH
-
-
?
2-methylphenylcyclohexanone + NADPH + O2
7-benzyloxepan-2-one + NADP+ + H2O
show the reaction diagram
-
mutant P3 prefers the R-isomer
-
-
?
2-nonanone + NADPH + H+ + O2
?
show the reaction diagram
-
less than 40% conversion
-
-
?
2-octanone + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
2-phenylcyclohexanone + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
2-phenylcyclohexanone + NADPH + O2
7-phenyloxepan-2-one + NADP+ + H2O
show the reaction diagram
-
molecular modeling of the Criegee intermediate, the wild-type enzyme prefers the S-isomer, while mutants P1-P3 all prefer the R-isomer
-
-
?
3-(3-trifluoromethylphenyl)butan-2-one + NADPH + H+ + O2
?
show the reaction diagram
-
enantioselective reaction
-
-
?
3-(4-chlorophenyl)cyclobutanone + NADPH + H+ + O2
?
show the reaction diagram
-
about 40% conversion
-
-
?
3-benzylcyclobutanone + NADPH + H+ + O2
?
show the reaction diagram
-
about 45% conversion
-
-
?
3-octanone + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
3-phenyl-2-butanone + NADPH + H+ + O2
(R)-3-phenylbutan-2-one + (S)-1-phenyethyl acetate
show the reaction diagram
-
enantioselective reaction
-
-
?
3-phenylcyclobutanone + NADPH + H+ + O2
?
show the reaction diagram
-
about 70% conversion
-
-
?
3-phenylpenta-2,4-dione + NADPH + O2
(R)-phenylacetylcarbinol + NADP+ + H2O
show the reaction diagram
-
-
the product is a well-known precursor in the synthesis of ephedrine and pseudoephedrine
-
?
4-hydroxyacetophenone + NADPH + O2
acetic acid 4-hydroxyphenyl ester + NADP+ + O2
show the reaction diagram
-
-
-
-
?
4-phenylcyclohexanone + NADPH + O2
4-phenyl-hexano-6-lactone + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
alpha-acetylphenylacetonitrile + NADPH + H+ + O2
(R)-2-acetoxyphenylacetonitrile + NADP+ + H2O
show the reaction diagram
-
enantioselective reaction
enantiopure product formation
-
?
benzocyclobutanone + NADPH + O2
2-coumaranone + NADP+ + H2O
show the reaction diagram
-
reaction is performed in presence of 10 U glucose-6-phosphate dehydrogenase and glucose-6-phosphate to recover NADPH
-
-
?
benzylacetone + NADPH + O2
?
show the reaction diagram
-
low activity
-
-
?
benzylacetone + NADPH + O2
? + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
bicyclohept-2-en-6-one + NADPH + O2
? + NADP+ + O2
show the reaction diagram
-
-
-
-
?
bicyclo[2.2.1]heptan-2-one + NADPH + H+ + O2
?
show the reaction diagram
-
about 5% conversion
-
-
?
bicyclo[3.2.0]hept-2-en-6-one + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
cyclohexanone + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
cyclopentanone + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
diketone + NADPH + O2
(R)-1-acetoxy-phenylacetone + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
ethionamide + NADPH + O2
? + NADP+ + O2
show the reaction diagram
-
-
-
-
?
methyl 4-tolylsulfide + NADPH + O2
? + NADP+ + O2
show the reaction diagram
-
-
-
-
?
N,N-dimethylbenzylamine + NADPH + O2
N,N-dimethylbenzylamine N-oxide + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
phenylacetone + NADPH + H+ + O2
benzyl acetate + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
phenylacetone + NADPH + O2
benzyl acetate + NADP+ + H2O
show the reaction diagram
phenylboronic acid + NADPH + O2
?
show the reaction diagram
-
formation of phenol
-
-
?
rac-2-ethylcyclohexanone + NADPH + O2
benzyl acetate + NADP+ + H2O
show the reaction diagram
-
substrate is only accepted by mutants of phenylacetone monooxygenase, reaction is performed in presence of 2 U secondary alcohol dehydrogenase from Thermoanaerobacter ethanolicus and isopropanol to recover NADPH
-
-
?
rac-3-methyl-4-phenylbutan-2-one + NADH + H+ + O2
(2R)-1-phenylpropan-2-yl acetate + NAD+ + H2O
show the reaction diagram
-
enantioselective reaction by PAMO
-
-
?
rac-3-methyl-4-phenylbutan-2-one + NADPH + H+ + O2
(2R)-1-phenylpropan-2-yl acetate + NADP+ + H2O
show the reaction diagram
-
enantioselective reaction by PAMO
-
-
?
rac-bicyclo [3.2.0]hept-2-en-6-one + NADPH + O2
?
show the reaction diagram
-
activity and stereoselectivity of wild-type and mutant enzymes, overview
-
-
?
thioanisole + NADH + H+ + O2
thioanisole sulfoxide + NAD+ + H2O
show the reaction diagram
-
low activity, less enantioselective reaction
-
-
?
thioanisole + NADPH + H+ + O2
?
show the reaction diagram
-
-
-
-
?
thioanisole + NADPH + H+ + O2
methyl phenyl sulfoxide + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
thioanisole + NADPH + H+ + O2
thioanisole sulfoxide + NADP+ + H2O
show the reaction diagram
-
enantioselective reaction
mainly (R)-sulfoxide
-
?
additional information
?
-
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
phenylacetone + NADPH + H+ + O2
benzyl acetate + NADP+ + H2O
show the reaction diagram
phenylacetone + NADPH + H+ + O2
benzyl acetate + NADP+ + H2O
show the reaction diagram
-
-
-
-
?
COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
(R)-NADPD
deuterated cofactor derivative, the overall rate of catalysis is largely determined by the rate of hydride transfer upon replacement of NADPH by (R)-NADPD as the coenzyme, overview
NADPH
NADH
-
poor activity with NADH, kinetics, binding mode, overview
NADPH
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
Benzyl acetate
product inhibition
NADP+
product inhibition, remains bound during catalysis
1,4-dioxane
-
33% inhibition at 10% concentration as co-solvent, 53% inhibition at 30%
2-Octanone
-
substrate inhibition
acetone
-
45% inhibition at 10% concentration as co-solvent inpresence of substrate, 93% in absence of substrate
acetonitrile
-
88.5% inhibition at 30% concentration as co-solvent
ethanol
-
45% inhibition at 10% concentration as co-solvent
Isopropanol
-
52% inhibition at 30% concentration as co-solvent
methanol
-
40% inhibition at 30% concentration as co-solvent
n-Propanol
-
80% inhibition at 30% concentration as co-solvent
phenylacetone
-
substrate inhibition
additional information
-
ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
additional information
glucose does not improve the catalytic conversion by the enzyme
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.25 - 3.2
2-Octanone
0.8 - 44
2-phenylcyclohexanone
0.1037 - 0.698
cyclohexanone
1000 - 1200
Cyclopentanone
0.06 - 1.4
phenylacetone
0.83
(2-methylphenyl)acetone
-
30°C, pH 7.5, 0.1 mM NADPH
0.26
2-dodecanone
-
30°C, pH 7.5, 0.1 mM NADPH
0.25 - 2
2-Octanone
0.07 - 4
2-phenylcyclohexanone
2.2
4-hydroxyacetophenone
-
30°C, pH 7.5, 0.1 mM NADPH
0.36
benzylacetone
-
30°C, pH 7.5, 0.1 mM NADPH
15
bicyclohept-2-en-6-one
-
30°C, pH 7.5, 0.1 mM NADPH
1000 - 1200
Cyclopentanone
0.86
methyl 4-tolylsulfide
-
30°C, pH 7.5, 0.1 mM NADPH
0.0006 - 0.85
NADPH
0.04 - 4
phenylacetone
additional information
additional information
-
TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.067 - 2.3
2-Octanone
0.07 - 0.3
2-phenylcyclohexanone
0.0456 - 0.304
cyclohexanone
0.9 - 1.6
Cyclopentanone
0.04 - 2.4
phenylacetone
2
(2-methylphenyl)acetone
-
30°C, pH 7.5, 0.1 mM NADPH
0.23
2-dodecanone
-
30°C, pH 7.5, 0.1 mM NADPH
1 - 2.3
2-Octanone
0.07 - 0.5
2-phenylcyclohexanone
0.34
4-hydroxyacetophenone
-
30°C, pH 7.5, 0.1 mM NADPH
1.8
benzylacetone
-
30°C, pH 7.5, 0.1 mM NADPH
1.1
bicyclohept-2-en-6-one
-
30°C, pH 7.5, 0.1 mM NADPH
0.9 - 1.6
Cyclopentanone
2.1
methyl 4-tolylsulfide
-
30°C, pH 7.5, 0.1 mM NADPH
0.8 - 3.8
NADPH
0.22 - 3
phenylacetone
additional information
additional information
-
all substrates show a turnover between 1.2 s-1 and 3.6 s-1
-
kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.043 - 9.2
2-Octanone
0.0016 - 0.375
2-phenylcyclohexanone
0.216 - 0.63
cyclohexanone
0.00075 - 0.0016
Cyclopentanone
0.029 - 40
phenylacetone
0.48 - 9.2
2-Octanone
0.008 - 0.37
2-phenylcyclohexanone
0.8 - 1.6
Cyclopentanone
1 - 6000
NADPH
35 - 37.5
phenylacetone
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
7.5 - 9
-
assay at
pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
6 - 10
activity range, profile overview
7 - 10
pH profile, and dependence of the enantioselectivity of the reaction, overview
7 - 9
-
more than 80% of maximal activity
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
30 - 37
in vivo assay at
45
assay at, substrate cyclohexanone
25 - 30
-
assay at
30
-
assay at
40
-
assay at
70
-
4fold higher activity when compared with the activity at 25°C
TEMPERATURE RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
45 - 58
-
at 58C 75% of enzyme activity remains, at 60C activity is nearly zero, at 45C enzyme is fully active
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
evolution
physiological function
phenylacetone monooxygenase (PAMO) catalyzes oxidation of ketones with molecular oxygen and NADPH with the formation of esters
additional information
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
65000
-
1 * 65000, SDS-PAGE, small amount of approx. 7% is present as a dimer
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
monomer
x * 62000, SDS-PAGE
monomer
-
1 * 65000, SDS-PAGE, small amount of approx. 7% is present as a dimer
additional information
POSTTRANSLATIONAL MODIFICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
crystals are grown at 20°C by vapor diffusion, hanging drops are formed by mixing equal volumes of 18 mg/ml protein in 5 mM FAD and 50 mM sodium phosphate, pH 7.0, and of a well solution consisting of 1.5 M ammonium sulfate and 500 mM lithium chloride, crystals diffract to 1.7 A resolution
PAMO crystal structure analysis, comparison to cyclohexanone monooxygenase, EC 1.14.13.22
-
PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
A442P
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 81% conversion rate
A442P/ L443I/S444Q
random and site-directed mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 43% conversion rate
A442P/ L443V/S444Q
random and site-directed mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 45% conversion rate
A442P/L443I
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 45% conversion rate
A442P/L443L/S444Q
random and site-directed mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 41% conversion rate
A442P/L443T/S444Q
random and site-directed mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 56% conversion rate
A442P/L443V
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 90% conversion rate
A442P/L443W
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 74% conversion rate
A442P/L443W/ S444Q
random and site-directed mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 33% conversion rate
C65D/M446I
site-directed mutagenesis
C65D/M446I/Y495I
site-directed mutagenesis, the M446I and Y495I mutations do not have significant influence on the NADPH oxidation activities. The triple mutant, which shows the greatest stability to H2O2, exhibits the highest catalytic activity (kcat) for NADPH oxidation. Thus, the oxidative stability is not markedly related to the NADPH oxidation and H2O2 generation rates
C65D/M446I/Y517I
site-directed mutagenesis, the M446I mutation does not have significant influence on the NADPH oxidation activities. The residual activity of this triple mutant variant remains unchanged during incubation with externally added H2O2. The variant completely loses the catalytic activity after 1 hour when H2O2 is generated in situ from NADPH oxidation. This fast deactivation of the C65D/M446I/Y517I variant leads to oxidation of only 10% of NADPH added. The Y517I mutation in C65D/M446I variant appears to result in blocking of the H2O2 exit and entrance path. The H2O2 generated in the active site might remain there, oxidizing amino acid residues in vicinity of the active site. The low catalytic activity of the C65D/M446I/Y517I variant for NADPH oxidation suggests that the Y517I mutation results in not only blocking of the H2O2 migration path but also modification of the active site structure
I67A
site-directed mutagenesis, the mutant shows no activity with cyclohexanone like the wild-type enzyme
I67A/P440F
site-directed mutagenesis, the mutant shows high activity with cyclohexanone, 95.1% conversion after 4 h
I67C
site-directed mutagenesis, the mutant shows no activity with cyclohexanone like the wild-type enzyme
I67C/P440F
site-directed mutagenesis, the mutant shows high activity with cyclohexanone, 92.4% conversion after 4 h
I67C/P440F/A442F/L443D
site-directed mutagenesis, the mutant shows moderate activity with cyclohexanone
I67C/P440Y
site-directed mutagenesis, the mutant shows moderate activity with cyclohexanone
I67G
site-directed mutagenesis, the mutant shows no activity with cyclohexanone like the wild-type enzyme
I67G/P440F
site-directed mutagenesis, the mutant shows high activity with cyclohexanone, 87.5% conversion after 4 h
I67Y
site-directed mutagenesis, the mutant shows no activity with cyclohexanone like the wild-type enzyme
I67Y/P440F
site-directed mutagenesis, the mutant shows high activity with cyclohexanone, 97.8% conversion after 4 h
I67Y/P440Y
site-directed mutagenesis, the mutant shows high activity with cyclohexanone
L443V
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 53% conversion rate
L443V/S444M
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 53% conversion rate
L443V/S444Q
L443V/S444T
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 57% conversion rate
P253F/G254A/R258M/L443F
site-directed mutagenesis, the engineered mutant quadruple enzyme variant P253F/G254A/R258M/L443F exhibits significantly improved activity towards 2-octanone compared to wild-type. A remarkable movement of L289 is crucial for a reshaping of the active site of the quadruple variant so as to prevent the aliphatic substrate from moving away from the C4a-peroxyflavin, thus enabling it to keep a catalytically relevant pose during the oxygenation process, substrate specificity compared to wild-type
P440F
site-directed mutagenesis, the mutant shows high activity with cyclohexanone, 50.2% conversion after 4 h
P440H
site-directed mutagenesis, the mutant shows low activity with cyclohexanone
P440I
site-directed mutagenesis, the mutant shows low activity with cyclohexanone
P440W
site-directed mutagenesis, the mutant shows high acticity with cyclohexanone
P440Y
site-directed mutagenesis, the mutant shows low activity with cyclohexanone
Q93N/P94D/P440F
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at low rate
R258A
site-directed mutagenesis, when the substrate 2-octanone binds to the R258A mutant, a significant change in the position of the hexyl tail of the substrate is observed, altered substrate specificity compared to wild-type
R258M
site-directed mutagenesis, the R258M mutation significantly affects pose of 2-octanone, since the hexyl tail moves towards M258, substrate specificity compared to wild-type
R337A
site-directed mutagenesis, the mutant is still able to form and stabilize the C4a-peroxyflavin intermediate, but loses the ability to convert phenylacetone or benzyle methylsulfide
R337K
site-directed mutagenesis, the mutant is still able to form and stabilize the C4a-peroxyflavin intermediate, but loses the ability to convert phenylacetone or benzyle methylsulfide
S441D/A442E
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 73% conversion rate
S441G/A442P/L443T/S444Q
site-directed mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at about 90% conversion rate
S441G/A442T
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 48% conversion rate
S441H
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 34% conversion rate
S441H/A442P
random/saturation mutagenesis, the mutant is active with cyclohexanone, in contrast to the wild-type enzyme, and catalyzes its conversion to epsilon-caprolactone at 78% conversion rate
A435Y
A442G
-
the mutant shows 75% of wild type activity
C65V
-
the mutant shows 94% of wild type activity
C65V/I67T
-
the mutant shows 47% of wild type activity
C65V/I67T/Q152F/S441A/A442G
-
the mutant shows 31% of wild type activity
C65V/I67T/Q93W
-
the mutant shows 54% of wild type activity
H220A
-
site-directed mutagenesis
H220D
-
site-directed mutagenesis
H220E
-
site-directed mutagenesis, H220E mutant performs worse than wild-type PAMO with both coenzymes NADPH and NADH
H220F
-
site-directed mutagenesis
H220N
-
site-directed mutagenesis, the mutant shows about 3fold improvement in the catalytic efficiency with NADH while the catalytic efficiency with NADPH is hardly affected
H220Q
-
site-directed mutagenesis, the mutant shows about 3fold improvement in the catalytic efficiency with NADH while the catalytic efficiency with NADPH is hardly affected
H220Q/K336H
-
site-directed mutagenesis
H220Q/K336N
-
site-directed mutagenesis
H220T
-
site-directed mutagenesis
H220W
-
site-directed mutagenesis
I339S
-
the mutant shows 81% of wild type activity
I67T
-
the mutant shows 16% of wild type activity
I67T/L338P
-
the mutant shows less than 3% of wild type activity
I67T/L338P/A435Y/A442G
-
the mutant shows less than 3% of wild type activity
I67T/L338P/A435Y/A442G/L443F/S444C
-
the mutant shows less than 3% of wild type activity
K336H
-
site-directed mutagenesis
K336N
-
site-directed mutagenesis
L153G
L338P
-
the mutant shows 59% of wild type activity
L443F
-
the mutant shows 65% of wild type activity
L447P
-
the mutant shows 85% of wild type activity
M446G
P253F/G254A/R258M/L443F
-
the mutant shows the same thermostability as the wild type enzyme while it displays an extended substrate spectrum
P440F
-
higher subtrate variability, temperature optimum at 50C with range from 45-56C
P440H
-
higher subtrate variability, temperature optimum at 50C with range from 45-56C
P440I
-
higher subtrate variability, temperature optimum at 50C with range from 45-56C
P440L
-
higher subtrate variability, temperature optimum at 50C with range from 45-56C
P440N
-
higher subtrate variability, temperature optimum at 50C with range from 45-56C
P440T
-
higher subtrate variability, temperature optimum at 50C with range from 45-56C
P440Y
-
higher subtrate variability, temperature optimum at 50C with range from 45-58C
Q152F
-
the mutant shows 35% of wild type activity
Q152F/A442G
-
the mutant shows 37% of wild type activity
Q152F/S441A/A442G
-
the mutant shows 33% of wild type activity
Q93W
-
the mutant shows 65% of wild type activity
Q93W/A442G/S444C/M446G/L447P
-
the mutant shows 38% of wild type activity
Q93W/S441A/A442G/S444C/M446G/L447P
-
the mutant shows 40% of wild type activity
R217A
-
site-directed mutagenesis
R217L
-
site-directed mutagenesis
S441A
-
the mutant shows 73% of wild type activity
S441A/A442G
-
the mutant shows 56% of wild type activity
S441A/A442G/S444C/M446G/L447P
-
the mutant shows 41% of wild type activity
S444C
-
the mutant shows 66% of wild type activity
T218A
-
site-directed mutagenesis
V54I
-
the mutant shows 65% of wild type activity
V54I/C65V/I67T/Q93W/I339S/S441A/A442G/S444C/M446G/L447P
-
the mutant shows 5% of wild type activity
V54I/C65V/I67T/Q93W/Q152F/I339S/S441A/A442G/S444C/M446G/L447P
-
the mutant shows less than 3% of wild type activity
V54I/C65V/I67T/Q93W/Q152F/L153G/I339S/S441A/A442G/S444C/M446G/L447P
-
the mutant shows less than 3% of wild type activity
W501A
-
the mutant shows reduced activity compared to the wild type enzyme
additional information
TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
50
PAMO exhibits high thermostability and activity at 50°C
57.5
Tm value for enzyme PAMO mutant A442P/L443V
58.5
Tm value for enzyme PAMO mutant S441G/A442P/L443T/S444Q
60.5
Tm value for wild-type enzyme PAMO
52
-
50% loss of activity after 24 h and 48 h in the absence and presence of FAD, respectively
60
-
the wild type enzyme has a melting temperature of 60°C
GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
detergents stabilize the enzyme, best by Tween-20 at 0.1% v/v
-
PAMO that has been activated at 50°C can be stored for several days at room temperature without any loss in activity
-
ORGANIC SOLVENT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
2-pentanol
-
as a sacrificial substrate
cyclohexane
-
stabilizes the enzyme, best organic solvent, inactivation of the enzyme within 5 min
isopropanol
-
the most effective stoichiometric sacrificial electron donor, optimal at 5% v/v
Methanol
-
methanol induces a significant increase of enzyme activity (up to 5fold), which is optimal at 20% (v/v)
methyl tert-butyl ether
-
stabilizes the enzyme, inactivation of the enzyme within below 5 min
additional information
-
the initial activity of wild type enzyme is not affected by 10% (v/v) 1,4-dioxane
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
recombinant C-terminally His-tagged enzyme from Escherichia coli strain BL21(DE3) by one-step nickel affinity chromatography to near-homogeneity
recombinant His-tagged wild-type and mutant enzymes from Escherichia coli
recombinant PAMO
recombinant His-tagged wild-type and mutant PAMOs from Escherichia coli strain TOP10 by nickel affinity chromatography
-
recombinant PAMO
-
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expression in Escherichia coli
expression of His-tagged wild-type and mutant enzymes in Escherichia coli
gene pamO, recombinant expression of His-tagged enzyme in three different forms (C, N, and L) concerning the position of His-tag in Escherichia coli strain BL21(DE3), the His-tag locates at the N- and C-termini of the enzyme (PAMO N and PAMO C, respectively), PAMO L describes a construct with the His-tag distanced from the enzyme C-terminus with an additional 19-amino acid sequence, the enzyme forms do not show great differences in catalytic activity. No use of the arabinose promoter in the expression system
recombinant expression of His-tagged wild-type and mutant enzymes in Escherichia coli
expressed in Escherichia coli BL21(DE3) cells
-
expressed in Escherichia coli Top10 cells
-
expression in Escherichia coli
-
expression of His-tagged wild-type and mutant PAMOs in Escherichia coli strain TOP10
-
overexpressed in Escherichia coli
-
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
synthesis
synthesis
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Fraaije, M.W.; Wu, J.; Heuts, D.P.; van Hellemond, E.W.; Spelberg, J.H.; Janssen, D.B.
Discovery of a thermostable Baeyer-Villiger monooxygenase by genome mining
Appl. Microbiol. Biotechnol.
66
393-400
2005
Thermobifida fusca
Manually annotated by BRENDA team
Malito, E.; Alfieri, A.; Fraaije, M.W.; Mattevi, A.
Crystal structure of a Baeyer-Villiger monooxygenase
Proc. Natl. Acad. Sci. USA
101
13157-13162
2004
Thermobifida fusca (Q47PU3), Thermobifida fusca
Manually annotated by BRENDA team
Bocola, M.; Schulz, F.; Leca, F.; Vogel, A.; Fraaije, M.W.; Reetz, M.T.
Converting phenylacetone monooxygenase into phenylcyclohexanone monooxygenase by rational design: towards practical Baeyer-Villiger monooxygenases
Adv. Synth. Catal.
347
979-986
2005
Thermobifida fusca
-
Manually annotated by BRENDA team
Schulz, F.; Leca, F.; Hollmann, F.; Reetz, M.T.
Towards practical biocatalytic Baeyer-Villiger reactions: applying a thermostable enzyme in the gram-scale synthesis of optically active lactones in a two-liquid-phase system
Beilstein J. Org. Chem.
1
10
2005
Thermobifida fusca
Manually annotated by BRENDA team
De Gonzalo, G.; Ottolina, G.; Zambianchi, F.; Fraaije, M.W.; Carrea, G.
Biocatalytic properties of Baeyer-Villiger monooxygenases in aqueous-organic media
J. Mol. Catal. B
39
91-97
2006
Thermobifida fusca
-
Manually annotated by BRENDA team
de Gonzalo, G.; Torres Pazmino, D.E.; Ottolina, G.; Fraaije, M.W.; Carrea, G.
Oxidations catalyzed by phenylacetone monooxygenase from Thermobifida fusca
Tetrahedron
16
3077-3083
2005
Thermobifida fusca
-
Manually annotated by BRENDA team
Zambianchi, F.; Fraaije, M.W.; Carrea, G.; de Gonzalo, G.; Rodriguez, C.; Gotor, V.; Ottolina, G.
Titration and assignment of residues that regulate the enantioselectivity of phenylacetone monooxygenase
Adv. Synth. Catal.
349
1327-1331
2007
Thermobifida fusca (Q47PU3)
-
Manually annotated by BRENDA team
Torres Pazmino, D.E.; Baas, B.J.; Janssen, D.B.; Fraaije, M.W.
Kinetic mechanism of phenylacetone monooxygenase from Thermobifida fusca
Biochemistry
47
4082-4093
2008
Thermobifida fusca (Q47PU3), Thermobifida fusca
Manually annotated by BRENDA team
Rodriguez, C.; de Gonzalo, G.; Torres Pazmino, D.E.; Fraaije, M.W.; Gotor, V.
Selective Baeyer-Villiger oxidation of racemic ketones in aqueous-organic media catalyzed by phenylacetone monooxygenase
Tetrahedron Asymmetry
19
197-203
2008
Thermobifida fusca
-
Manually annotated by BRENDA team
Rioz-Martinez, A.; De Gonzal, D.G.; Torres Pazmino, D.; Fraaije, M.; Gotor, V.
Enzymatic Baeyer-Villiger oxidation of benzo-fused ketones: Formation of regiocomplementary lactones
Eur. J. Org. Chem.
2009
2526-2532
2009
Pseudomonas fluorescens, Thermobifida fusca
-
Manually annotated by BRENDA team
Reetz, M.T.; Wu, S.
Laboratory evolution of robust and enantioselective Baeyer-Villiger monooxygenases for asymmetric catalysis
J. Am. Chem. Soc.
131
15424-15432
2009
Thermobifida fusca
Manually annotated by BRENDA team
Dudek, H.M.; Torres Pazmino, D.E.; Rodriguez, C.; de Gonzalo, G.; Gotor, V.; Fraaije, M.W.
Investigating the coenzyme specificity of phenylacetone monooxygenase from Thermobifida fusca
Appl. Microbiol. Biotechnol.
88
1135-1143
2010
Thermobifida fusca
Manually annotated by BRENDA team
Dudek, H.M.; de Gonzalo, G.; Pazmino, D.E.; Stepniak, P.; Wyrwicz, L.S.; Rychlewski, L.; Fraaije, M.W.
Mapping the substrate binding site of phenylacetone monooxygenase from Thermobifida fusca by mutational analysis
Appl. Environ. Microbiol.
77
5730-5738
2011
Thermobifida fusca
Manually annotated by BRENDA team
Dudek, H.M.; Fink, M.J.; Shivange, A.V.; Dennig, A.; Mihovilovic, M.D.; Schwaneberg, U.; Fraaije, M.W.
Extending the substrate scope of a Baeyer-Villiger monooxygenase by multiple-site mutagenesis
Appl. Microbiol. Biotechnol.
98
4009-4020
2013
Thermobifida fusca
Manually annotated by BRENDA team
de Gonzalo, G.; Rodriguez, C.; Rioz-Martinez, A.; Gotor, V.
Improvement of the biocatalytic properties of one phenylacetone monooxygenase mutant in hydrophilic organic solvents
Enzyme Microb. Technol.
50
43-49
2012
Thermobifida fusca
Manually annotated by BRENDA team
Andrade, L.; Pedrozo, E.; Leite, H.; Brondani, P.
Oxidation of organoselenium compounds. A study of chemoselectivity of phenylacetone monooxygenase
J. Mol. Catal. B
73
63-66
2011
Thermobifida fusca
-
Manually annotated by BRENDA team
Rodriguez, C.; De Gonzalo, G.; Gotor, V.
Optimization of oxidative bioconversions catalyzed by phenylacetone monooxygenase from Thermobifida fusca
J. Mol. Catal. B
74
138-143
2012
Thermobifida fusca
-
Manually annotated by BRENDA team
Parra, L.P.; Acevedo, J.P.; Reetz, M.T.
Directed evolution of phenylacetone monooxygenase as an active catalyst for the Baeyer-Villiger conversion of cyclohexanone to caprolactone
Biotechnol. Bioeng.
112
1354-1364
2015
Thermobifida fusca (Q47PU3)
Manually annotated by BRENDA team
Carvalho, A.T.P.; Dourado, D.F.A.R.; Skvortsov, T.; de Abreu, M.; Ferguson, L.J.; Quinn, D.J.; Moody, T.S.; Huang, M.
Catalytic mechanism of phenylacetone monooxygenases for non-native linear substrates
Phys. Chem. Chem. Phys.
19
26851-26861
2017
Thermobifida fusca (Q47PU3)
Manually annotated by BRENDA team
Gran-Scheuch, A.; Parra, L.; Fraaije, M.
Systematic assessment of uncoupling in flavoprotein oxidases and monooxygenases
ACS Sust. Chem. Eng.
FEHLT
0000
2021
Thermobifida fusca (Q47PU3)
-
Manually annotated by BRENDA team
Seo, E.; Kim, M.; Park, S.; Park, S.; Oh, D.; Bornscheuer, U.; Park, J.
Enzyme access tunnel engineering in Baeyer-Villiger monooxygenases to improve oxidative stability and biocatalyst performance
Adv. Synth. Catal.
364
555-564
2022
Thermobifida fusca (Q47PU3)
-
Manually annotated by BRENDA team
Parshin, P.D.; Pometun, A.A.; Martysuk, U.A.; Kleymenov, S.Y.; Atroshenko, D.L.; Pometun, E.V.; Savin, S.S.; Tishkov, V.I.
Effect of His6-tag position on the expression and properties of phenylacetone monooxygenase from Thermobifida fusca
Biochemistry (Moscow)
85
575-582
2020
Thermobifida fusca (Q47PU3), Thermobifida fusca
Manually annotated by BRENDA team
Purwani, N.N.; Martin, C.; Savino, S.; Fraaije, M.W.
Modular assembly of phosphite dehydrogenase and phenylacetone monooxygenase for tuning cofactor regeneration
Biomolecules
11
905
2021
Thermobifida fusca (Q47PU3)
Manually annotated by BRENDA team
Yang, G.; Cang, R.; Shen, L.; Xue, F.; Huang, H.; Zhang, Z.
Expanding the substrate scope of phenylacetone monooxygenase from Thermobifida fusca towards cyclohexanone by protein engineering
Catal. Commun.
119
159-163
2019
Thermobifida fusca (Q47PU3)
-
Manually annotated by BRENDA team
Carvalho, A.T.P.; Dourado, D.F.A.R.; Skvortsov, T.; de Abreu, M.; Ferguson, L.J.; Quinn, D.J.; Moody, T.S.; Huang, M.
Spatial requirement for PAMO for transformation of non-native linear substrates
Phys. Chem. Chem. Phys.
20
2558-2570
2018
Thermobifida fusca (Q47PU3)
Manually annotated by BRENDA team