HOME
login
history
all enzymes
BRENDA home
History
Enzyme Nomenclature
Information on EC 1.14.13.B1 - camphor 1,6-monooxygenase
for references in articles please use BRENDA:EC1.14.13.B1
Word Map on EC 1.14.13.B1
- 1.14.13.B1
- putida
-
ncimb
- flavin
-
two-component
- ketone
-
bicyclic
- norcamphor
-
requisite
-
isofunctional
- fad
-
biooxidation
- synthesis
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
Specify your search results
The expected taxonomic range for this enzyme is: Pseudomonas putida
topPlease wait a moment until the data is sorted. This message will disappear when the data is sorted.
EC NUMBER 
COMMENTARY 
1.14.13.B1
preliminary BRENDA-supplied EC number
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
RECOMMENDED NAME
GeneOntology No.
camphor 1,6-monooxygenase
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
(-)-bornane-2,5-dione + reduced rubredoxin + O2 + 2 H+ = 1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + oxidized rubredoxin + H2O
(-)-bornane-2,5-dione + reduced rubredoxin + O2 + 2 H+ = 1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + oxidized rubredoxin + H2O
belongs to group of Bayer-Villiger monooxygenases of the NADH plus FMN-dependent type 2 enzymes; catalysis of 2 mechanistically different types of biochemical reactions within the confines of the same active site; cubic space active site model, topography; higher activity in oxidation of sulfides to the corresponding sulfoxides than in lactonization of ketones; isozyme, enantiocomplementary and isofunctional isozymes 2,5-DKCMO EC 1.14.15.2 and 3,6-DKCMO EC 1.14.15.x; mechanism
-
(-)-bornane-2,5-dione + reduced rubredoxin + O2 + 2 H+ = 1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + oxidized rubredoxin + H2O
belongs to group of Bayer-Villiger monooxygenases of the NADH plus FMN-dependent type 2 enzymes; mechanism
-
(-)-bornane-2,5-dione + reduced rubredoxin + O2 + 2 H+ = 1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + oxidized rubredoxin + H2O
i.e. cyclopentaneacetic acid, 3-hydroxy-2,2,3-trimethyl-5-oxo, delta-lactone, reacts sponaneously to (2,2-dimethyl-5-oxo-cyclopent-3-en-1-yl)acetic acid
-
-
-
(-)-bornane-2,5-dione + reduced rubredoxin + O2 + 2 H+ = 1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + oxidized rubredoxin + H2O
belongs to group of Bayer-Villiger monooxygenases of the NADH plus FMN-dependent type 2 enzymes; mechanism
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Bayer-Villiger reaction
oxidation
-
-
-
-
redox reaction
-
-
-
-
reduction
-
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SYSTEMATIC NAME
IUBMB Comments
(-)-camphor,reduced-rubredoxin:oxygen oxidoreductase (1,6-lactonizing)
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
CAS REGISTRY NUMBER
COMMENTARY
151616-60-3
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
; 2 isozymes termed 2,5-diketocamphane-1,2-monooxygenase and 3,6-diketocamphane-1,6-monooxygenase
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
evolution
metabolism
-
the enzyme is involved in the camphor-degradation pathway, overview
physiological function
additional information
-
the enzyme is a type II Baeyer-Villiger monooxygenase, enzyme structure modeling, active site structure, overview
evolution
-
the orientation of the isoalloxazine ring of the FMN cofactor in the active site of the TIM-barrel fold enzyme differs significantly from that previously observed in enzymes of the bacterial luciferase-like superfamily. The Ala77 residue is in a cis conformation and forms a beta-bulge at the C-terminus of beta-strand 3, which is a feature observed in many proteins of this superfamily. Both the 2,5-DKMO and 3,6-DKMO oxygenating components have sequence similarity to bacterial luciferases and bear little similarity to type I Baeyer-Villiger monooxygenase, type I BVMOs
evolution
-
type 2 Baeyer-Villiger monooxygenases (type 2 BVMOs) are a subgroup of the NAD(P)H:FMN-dependent two-component monooxygenases (TCMOs). They can alternatively be classed as a subgroup of the NAD(P)H:FMN-dependent class C flavoprotein monooxygenases
evolution
-
type 2 Baeyer-Villiger monooxygenases (type 2 BVMOs) are a subgroup of the NAD(P)H:FMN-dependent two-component monooxygenases (TCMOs). They can alternatively be classed as a subgroup of the NAD(P)H:FMN-dependent class C flavoprotein monooxygenases
-
physiological function
-
2,5- and 3,6-diketocamphane monooxygenase (DKCMO) are two enantiocomplementary isoenzymes that catalyse a key lactone-forming step in the degradation of the (+)- and (-)-camphor antipodes, respectively, in Pseudomonas putida NCIMB 10007. Enzyme 3,6-diketocamphane monooxygenase distributes the flavin nucleotide- and nicotinamide nucleotide-dependent tasks between a homodimeric monooxygenase component and a separate flavin reductase (FR) with unbound FMN, the flavin thus effectively serving as a second substrate to transfer reducing power between the functionally distinct subunits. Various flavin reductases function effectively as sources of the requisite FMNH2 to 3,6-diketocamphane monooxygenase at different times throughout growth on camphor, significant subsequent contribution throughout the mid- to late-exponential phases of growth is also made by the camphor-induced homodimeric 37.0 kDa flavin reductase Fred, possible involvement of camphor-induced putidaredoxin reductase as a contributory activity. Analysis of flavin reductases in Pseudomonas putida NCIMB 10007, overview
physiological function
-
2,5- and 3,6-diketocamphane monooxygenase (DKCMO) are two enantiocomplementary isoenzymes that catalyse a key lactone-forming step in the degradation of the (+)- and (-)-camphor antipodes, respectively, in Pseudomonas putida NCIMB 10007. Enzyme 3,6-diketocamphane monooxygenase distributes the flavin nucleotide- and nicotinamide nucleotide-dependent tasks between a homodimeric monooxygenase component and a separate flavin reductase (FR) with unbound FMN, the flavin thus effectively serving as a second substrate to transfer reducing power between the functionally distinct subunits. Various flavin reductases function effectively as sources of the requisite FMNH2 to 3,6-diketocamphane monooxygenase at different times throughout growth on camphor, significant subsequent contribution throughout the mid- to late-exponential phases of growth is also made by the camphor-induced homodimeric 37.0 kDa flavin reductase Fred, possible involvement of camphor-induced putidaredoxin reductase as a contributory activity. Analysis of flavin reductases in Pseudomonas putida NCIMB 10007, overview
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
(-)-bornane-2,5-dione + NADH + O2
1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + NAD+ + H2O
3,5,5-trimethyl-2-cyclohexen-1-one + NADH + O2
?
21% conversion
-
-
?
(+)-camphor + NADH + O2
? + NAD+ + H2O
88% conversion
-
-
?
(+/-)-cis-bicyclo[3.2.0]hept-2-en-6-one + NADH + O2
?
99% conversion
-
-
?
(+/-)-cis-bicyclo[3.2.0]hept-2-en-6-one + NADH + O2
?
99% conversion
-
-
?
(-)-bornane-2,5-dione + NADH + O2
1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + NAD+ + H2O
-
6-dione i.e. 3,6-diketocamphane
-
-
?
(-)-bornane-2,5-dione + NADH + O2
1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + NAD+ + H2O
-
6-dione i.e. 3,6-diketocamphane
i.e. cyclopentaneacetic acid, 3-hydroxy-2,2,3-trimethyl-5-oxo, delta-lactone, i.e. 3,4,4-trimethyl-6-carboxy-methyl-DELTA3-cyclopentenone, product is an unstable lactone-intermediate and forms spontaneously (2,2-dimethyl-5-oxo-cyclopent-3-en-1-yl)acetic acid, i.e. 2-oxo-DELTA3-4,5,5-trimethylcyclopentenyl acetic acid
?
(-)-bornane-2,5-dione + NADH + O2
1,8,8-trimethyl-2-oxabicyclo[3.2.1]octane-3,6-dione + NAD+ + H2O
-
6-dione i.e. 3,6-diketocamphane
-
-
?
(-)-bornane-2,5-dione + NADH + O2
?
-
inducible by growth on (+)-camphor
-
-
?
(-)-bornane-2,5-dione + NADH + O2
?
-
inducible by growth on racemic camphor
-
-
?
(-)-bornane-2,5-dione + NADH + O2
?
-
inducible by growth on (+)-camphor
-
-
?
(-)-camphor + NADH + O2
? + NAD+ + H2O
91% conversion
-
-
?
(R,R)-bicyclo[2.2.1]heptane-2,5-dione + NADH + O2
?
26% conversion
-
-
?
(R,R)-bicyclo[2.2.1]heptane-2,5-dione + NADH + O2
?
26% conversion
-
-
?
2,3,4,5-tetramethyl-2-cyclopenten-1-one + NADH + O2
?
43% conversion
-
-
?
2,3,4,5-tetramethyl-2-cyclopenten-1-one + NADH + O2
?
43% conversion
-
-
?
additional information
?
-
-
enzyme is associated with a NADH oxidase
-
-
-
additional information
?
-
-
enzyme is associated with a NADH oxidase
-
-
-
additional information
?
-
-
several sulfides and bicyclo[3,2,0]hept-2-en-6-one are enantioselectively oxidized to the corresponding sulfoxides and oxa lactones, respectively
-
-
-
additional information
?
-
-
catalyzes stereoselective electrophilic biooxidation of a wide range of prochiral organic sulfoxides to the corresponding chiral sulfoxides as well as the nucleophilic biooxidation of ketones to lactones with different enantio- and stereoselectivity, overview
-
-
-
additional information
?
-
-
mechanism of enantioselectivity for the hydroxyl-peroxide rearrangement taking place in the BVMO active site
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
additional information
?
-
-
catalyzes stereoselective electrophilic biooxidation of a wide range of prochiral organic sulfoxides to the corresponding chiral sulfoxides as well as the nucleophilic biooxidation of ketones to lactones with different enantio- and stereoselectivity, overview
-
-
-
(-)-bornane-2,5-dione + NADH + O2
?
-
inducible by growth on (+)-camphor
-
-
?
(-)-bornane-2,5-dione + NADH + O2
?
-
inducible by growth on racemic camphor
-
-
?
(-)-bornane-2,5-dione + NADH + O2
?
-
inducible by growth on (+)-camphor
-
-
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
COFACTOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
additional information
-
FAD is ineffective; purified NADH dehydrogenase component from 2,5-diketocamphane-1,2-monooxygenase can be used as electron donor
-
FMN
-
dependent on, FMN cofactor modelling. Type II Baeyer-Villiger monooxygenases are attributed to the R group in relation to the re-face attachment of the hydroperoxide to the flavin coenzyme. The FMN cofactor binds in the cleft formed at the C-terminal side of the TIM barrel, with the phosphate group involved in hydrogen bonding at the edge of the cleft and the isoalloxazine ring located deep inside of the cleft
NADH
-
absolute specificity; interaction of inducible NADH dehydrogenase component via bound FMN with oxygenating component
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
-
growth on (+)-, (-)- and (rac)-camphor. The two DKCMO isoenzymes, 2,5- and 3,6-diketocamphane monooxygenase, are highly selective towards their respective antipodes when serving as substrates for biooxygenation, nevertheless a small but significant cross-inducibility of the enantiomerically redundant DKCMO isoenzyme by both camphor antipodes exists
-
growth on (+)-, (-)- and (rac)-camphor. The two DKCMO isoenzymes, 2,5- and 3,6-diketocamphane monooxygenase, are highly selective towards their respective antipodes when serving as substrates for biooxygenation, nevertheless a small but significant cross-inducibility of the enantiomerically redundant DKCMO isoenzyme by both camphor antipodes exists
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
-
NADH dehydrogenase component forming a loosely complex with the oxygenating component
Pseudomonas putida C1 / ATCC 17453
-
NADH dehydrogenase component forming a loosely complex with the oxygenating component
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
additional information
additional information
-
enzyme components form a very loose complex; enzyme consists of 2 components: 1 oxygenating and 1 NADH dehydrogenase
additional information
-
enzyme consists of 2 components: 1 oxygenating and 1 NADH dehydrogenase
additional information
-
analysis of flavin reductases in Pseudomonas putida NCIMB 10007, overview
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SUBUNITS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
monomer
additional information
?
-
x * 17000-18000, native flavin reductase subunit of the enzyme and flavin reductase FRED, SDS-PAGE
?
-
x * 17000-18000, native flavin reductase subunit of the enzyme and flavin reductase FRED, SDS-PAGE; x * 40000, SDS-PAGE
-
additional information
-
enzyme components from a very loose complex; enzyme consists of 2 components: 1 oxygenating and 1 NADH dehydrogenase
additional information
Pseudomonas putida C1 / ATCC 17453
-
enzyme components from a very loose complex; enzyme consists of 2 components: 1 oxygenating and 1 NADH dehydrogenase
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Crystallization/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
plate shaped crystals from 4.0 M sodium formate and 28% PEG 8000 in 0.2 M sodium acetate, X-ray analysis
-
purified recombinant N-terminally His6-tagged enzyme, by Microbatch crystallization, mixing of 7 mg/ml protein in 20 mM FMN, 5 mM NADH and 5 mM (-)-camphor in a 1:1 ration, purified native enzyme, by vapour-diffusion technique, 10 mg/ml protein solution are mixed in equal volumes with 50 mM PIPES pH 6.5, 50% ammonium sulfate, room temperature, best from 100 mM HEPES pH 7.0, 20% PEG 3350 in the presence of 20 mM FMN, 5 mM NADH and 5 mM (-)-camphor, at 18°C, X-ray diffraction structure determination and analysis at 1.9-2.7 A resolution, the enzyme's crystal structure is solved by a combination of multiple anomalous dispersion from a bromine crystal soak and molecular replacement using a bacterial luciferase model
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
biooxygenating subunits of both enantiospecific DKCMO isoenzymes to homogeneity by a preparative process involving anion exchange chromatography and ultrafiltration, purification and detection of FMN-reductase activities
-
recombinant N-terminally His6-tagged enzyme from Escherichia coli strain BL21(DE3) by nickel affinity chromatography and gel filtration
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
the enzyme is encoded on the large CAM plasmid of Pseudomonas putida, recombinant expression of N-terminally His6-tagged enzyme in Escherichia coli strain BL21(DE3)
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
APPLICATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
synthesis
synthesis
-
production of useful chiral synthons for chemoenzymatic synthesis
synthesis
-
production of useful chiral synthons for chemoenzymatic synthesis
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
LINKS TO OTHER DATABASES (specific for EC-Number 1.14.13.B1)
html completed
Use of this online version of BRENDA is free but requires a license. See terms of use.
Information
