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Non-specific endo-1,3(4)-β-Glucanase
(Clostridium thermocellum)

Product code: E-LICACT
€0.00

5,000 Units

Prices exclude VAT

This product has been discontinued

Content: 5,000 Units
Shipping Temperature: Ambient
Storage Temperature: Below -10oC
Formulation: In 50% (v/v) glycerol
Physical Form: Solution
Stability: Minimum 1 year at 4oC. Check vial for details.
Enzyme Activity: β-Glucanase/Lichenase
EC Number: 3.2.1.6
CAZy Family: GH16
CAS Number: 62213-14-3
Synonyms: endo-1,3(4)-beta-glucanase; 3(or 4)-beta-D-glucan 3(4)-glucanohydrolase
Source: Clostridium thermocellum
Molecular Weight: 29,300
Concentration: Supplied at ~ 1,250 U/mL
Expression: Recombinant from Clostridium thermocellum
Specificity: endo-hydrolysis of (1,3)- or (1,4)-linkages in β-D-glucans when the glucose residue whose reducing group is involved in the linkage to be hydrolysed is itself substituted at C-3. Substrates include laminarin, lichenin and cereal D-glucans.
Specific Activity: ~ 186 U/mg (40oC, pH 6.5 on barley β-glucan); 
~ 395 U/mg (60oC, pH 6.5 on barley β-glucan);
~ 7.2 U/mg (40oC, pH 6.5 on CM-curdlan)
Unit Definition: One Unit of glucanase activity is defined as the amount of enzyme required to release one µmole of glucose reducing-sugar equivalents per minute from barley β-glucan (5 mg/mL) in sodium phosphate buffer (100 mM), pH 6.5 at 40oC.
Temperature Optima: 60oC
pH Optima: 6.5
Application examples: Applications in carbohydrate and biofuels research and in the food and feeds industries.

This product has been discontinued (read more).

High purity recombinant Non-specific endo-1,3(4)-β-Glucanase (Clostridium thermocellum) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

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Documents
Certificate of Analysis
Safety Data Sheet
Data Sheet
Publications
Megazyme publication
Novel approaches to the automated assay of β-glucanase and lichenase activity.

Mangan, D., Liadova, A., Ivory, R. & McCleary, B. V. (2016). Carbohydrate Research, 435, 162-172.

We report herein the development of a novel assay procedure for the measurement of β-glucanase and lichenase (EC 3.2.1.73) in crude enzyme extracts. Two assay formats based on a) a direct cleavage or b) an enzyme coupled substrate were initially investigated. The ‘direct cleavage’ substrate, namely 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-31-cellotriosyl-β-glucopyranoside (MBG4), was found to be the more generally applicable reagent. This substrate was fully characterised using a crude malt β-glucanase extract, a bacterial lichenase (Bacillus sp.) and a non-specific endo-1,3(4)-β-glucanase from Clostridium thermocellum (EC 3.2.1.6). Standard curves were derived that allow the assay absorbance response to be directly converted to β-glucanase/lichenase activity on barley β-glucan. The specificity of MBG4 was confirmed by analysing the action of competing glycosyl hydrolases that are typically found in malt on the substrate. Manual and automated assay formats were developed for the analysis of a) β-glucanase in malt flour and b) lichenase enzyme extracts and the repeatability of these assays was fully investigated.

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Publication

Analysis and application of a suite of recombinant endo-β (1, 3)-D-glucanases for studying fungal cell walls.

Carvalho, V. S., Gómez-Delgado, L., Curto, M. Á., Moreno, M. B., Pérez, P., Ribas, J. C. & Cortés, J. C. G. (2021). Microbial Cell Factories, 20(1), 1-16.

Background: The fungal cell wall is an essential and robust external structure that protects the cell from the environment. It is mainly composed of polysaccharides with different functions, some of which are necessary for cell integrity. Thus, the process of fractionation and analysis of cell wall polysaccharides is useful for studying the function and relevance of each polysaccharide, as well as for developing a variety of practical and commercial applications. This method can be used to study the mechanisms that regulate cell morphogenesis and integrity, giving rise to information that could be applied in the design of new antifungal drugs. Nonetheless, for this method to be reliable, the availability of trustworthy commercial recombinant cell wall degrading enzymes with non-contaminating activities is vital. Results: Here we examined the efficiency and reproducibility of 12 recombinant endo-β(1,3)-D-glucanases for specifically degrading the cell wall β(1,3)-D-glucan by using a fast and reliable protocol of fractionation and analysis of the fission yeast cell wall. This protocol combines enzymatic and chemical degradation to fractionate the cell wall into the four main polymers: galactomannoproteins, α-glucan, β(1,3)-D-glucan and β(1,6)-D-glucan. We found that the GH16 endo-β(1,3)-D-glucanase PfLam16A from Pyrococcus furiosus was able to completely and reproducibly degrade β(1,3)-D-glucan without causing the release of other polymers. The cell wall degradation caused by PfLam16A was similar to that of Quantazyme, a recombinant endo-β(1,3)-D-glucanase no longer commercially available. Moreover, other recombinant β(1,3)-D-glucanases caused either incomplete or excessive degradation, suggesting deficient access to the substrate or release of other polysaccharides. Conclusions: The discovery of a reliable and efficient recombinant endo-β(1,3)-D-glucanase, capable of replacing the previously mentioned enzyme, will be useful for carrying out studies requiring the digestion of the fungal cell wall β(1,3)-D-glucan. This new commercial endo-β(1,3)-D-glucanase will allow the study of the cell wall composition under different conditions, along the cell cycle, in response to environmental changes or in cell wall mutants. Furthermore, this enzyme will also be greatly valuable for other practical and commercial applications such as genome research, chromosomes extraction, cell transformation, protoplast formation, cell fusion, cell disruption, industrial processes and studies of new antifungals that specifically target cell wall synthesis.

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Safety Information
Symbol : GHS07, GHS08
Signal Word : Danger
Hazard Statements : H315, H319, H360
Precautionary Statements : P201, P202, P264, P280, P302+P352
Safety Data Sheet
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