With product 38429, the Enzymatic Activity specification per each lot is > or = to 0.5 (in U/mg). 1 U Corresponds to the Amount of Enzyme which Converts 1 mol Catechol per Minute at ph5.0 and 25 deg C. For each lot of product received, please consult the Certificate of Analysis to see how much is in each lot. From there, please calculate the concentration desired for your application.
38429
Laccase from Trametes versicolor
powder, light brown, ≥0.5 U/mg
Synonym(s):
Oxygen oxidoreductase
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About This Item
CAS Number:
NACRES:
NA.54
UNSPSC Code:
12352204
EC Number:
420-150-4
MDL number:
Specific activity:
≥0.5 U/mg
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form
powder
Quality Level
specific activity
≥0.5 U/mg
greener alternative product characteristics
Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
color
light brown
greener alternative category
storage temp.
2-8°C
SMILES string
[n]1(c(c(cc1C)C=O)C)CC
InChI
1S/C9H13NO/c1-4-10-7(2)5-9(6-11)8(10)3/h5-6H,4H2,1-3H3
InChI key
NWDZDFOKSUDVJV-UHFFFAOYSA-N
Related Categories
1 of 4
This Item | |||
|---|---|---|---|
| specific activity ≥0.5 U/mg | specific activity ≥4 U/mg | specific activity - | specific activity 100-300 units/mg protein |
| form powder | form powder | form - | form lyophilized powder |
| storage temp. 2-8°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. 2-8°C |
| color light brown | color deep brown | color - | color - |
| Quality Level 100 | Quality Level - | Quality Level 200 | Quality Level 200 |
| greener alternative product characteristics Waste Prevention | greener alternative product characteristics Design for Energy Efficiency | greener alternative product characteristics - | greener alternative product characteristics Waste Prevention |
General description
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and waste prevention when used in fuel cell and cellulosic ethanol research. For more information see the article in biofiles and Enzymes for Alternative Energy Research.
Laccase is an enzyme, produced by ericoid mycorrhiza and ectomycorrhiza fungi. It belongs to the group of polyphenol oxidases. Laccase is also present in plants and bacteria.[1]
Application
Biochem/physiol Actions
Laccase catalyzes the oxidation of phenol containing compounds, including lignin, through the reduction of oxygen to water. The presence of mediators will allow the oxidation of non-phenlic compounds as well. The primary function of laccase is to degrade lignin in fungi.
Some of the enzymatic actions of laccase are associated with sporulation, detoxification, morphogenesis, melanin polymerization and it offers protection to spore coat. Laccase can catalyse a number of substrates including medicinal drugs and halogenated pesticides. It utilizes oxygen for its catalysis. For these reasons, it might be useful in the biological degradation of micropollutants in wastewater treatment.[1]
Other Notes
One unit corresponds to the amount of enzyme which converts 1 μmole of catechol per minute at pH 5.0 and 25 °C
former nomenclature: Coriolus versicolor
signalword
Danger
hcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Komal Agrawal et al.
Heliyon, 6(5), e03972-e03972 (2020-05-22)
Multicopper oxidases (MCOs) has a unique feature of having the presence of four Cu atoms arranged into three (Type I, II and III) spectral classification. MCOs laccase due to its broad range of substrate specificity has numerous biotechnological applications. The
Laccases and other polyphenol oxidases in ecto-and ericoid mycorrhizal fungi
Burke R and Cairney J
Mycorrhiza, 12(3), 105-116 (2002)
Qimiao Shao et al.
The Journal of biological chemistry, 287(17), 14270-14279 (2012-03-01)
Many insects eat the green leaves of plants but excrete black feces in an as yet unknown mechanism. Insects cannot avoid ingesting pathogens with food that will be specifically detected by the midgut immune system. However, just as in mammals
Ana Luisa Parra Guardado et al.
Environmental science and pollution research international, 28(20), 25579-25593 (2021-01-19)
In the present work, pharmaceutical micropollutant degradation by laccase immobilized on silica through an innovative process is proposed. The influence of different parameters on the immobilization conditions was evaluated by a 23 full factorial design, and parameters leading to the
Jonas Margot et al.
AMB Express, 3(1), 63-63 (2013-10-25)
Relatively high concentrations of micropollutants in municipal wastewater treatment plant (WWTP) effluents underscore the necessity to develop additional treatment steps prior to discharge of treated wastewater. Microorganisms that produce unspecific oxidative enzymes such as laccases are a potential means to
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 38429-1G | 04061835504428 |
| 38429-10G | 04061831965544 |
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I dissolved 1 mg this product in 1 ml buffer (expected 1 mg/ml), but Bradford assay showed 0.01 mg/ml. Why is there such a big difference?
1 answer-
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What Organism is being used to heterologuosly produce this Laccase from Trametes?
1 answer-
The protein sequence of this product has not been characterized to enable heterologous production.
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Is the amino acid sequence of this enzyme available?
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The amino acid sequence for this product has not been determined internally.
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Is the molecular weight of this laccase available?
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The molecular weight of this product has not been determined. Literature sources indicate that fungal laccase has a molecular weight range of 60 - 70 kDa; however, this may be significantly influenced by glycosylation. Please see the link below to review a publication that may be helpful:
https://microbialcellfactories.biomedcentral.com/articles/10.1186/s12934-019-1248-0#:~:text=Their%20molecular%20mass%20ranges%20from,4.0%20%5B29%2C%2030%5DHelpful?
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What is the optimum temperature and optimum pH-value for this laccase? Is there an exact value or a range available?
1 answer-
According to the procedure for the enzymatic assay of laccase, the conditions are set at T = 30 °C and pH = 6.5.
You can find the full procedure for Enzymatic Assay of Laccase (EC 1.10.3.2) here:
https://www.sigmaaldrich.com/technical-documents/protocol/protein-biology/enzyme-activity-assays/enzymatic-assay-of-laccaseHelpful?
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Wie hoch ist die spezifische (Enzym)aktivität? d.h. wie viel Gramm Enzym sind in einem Aliquot verkauftem Enzym (bzw. wie viel nicht-Enzym Beimengen sind darin enthalten) -> ich benötige das für die Enzymmengenangaben in einem Patentantrag!
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The minimum activity specification for this product is 0.5 µ/mg. This value varies from lot to lot. A review of several recent lots reveals a general range of 0.5 µ/mg – 1.1 µ/mg,
A 1-gram vial with an activity of 0.5 U/mg would contain 500 units. The same lot in the 10-gram vial would contain 5000 units.
The purity of this product is not tested. The presence or absence of any other non-enzyme admixtures has not been determined and such values are unavailable.A lot-specific or sample Certificate can be accessed in the DOCUMENTATION section of the Product Detail Page under 'Certificate of Analysis':
https://www.sigmaaldrich.com/product/sigma/38429#product-documentationHelpful?
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