t-Boc-N-Amido-PEG5-propargyl comprises a propargyl group and Boc-protected amine. The propargyl group reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The Boc group can be deprotected under mild acidic conditions to form the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
t-Boc-N-Amido-PEG5-propargyl comprises a propargyl group and Boc-protected amine. The propargyl group reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The Boc group can be deprotected under mild acidic conditions to form the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Heat sealing offers a 100% effective method of plate sealing, for complete seal integrity, as well as being quick and cost effective.
Our Individual Access Peel Heat Seal is a laminate seal compatible with polypropylene plates, featuring 96 individual foil seal spots or 12 strips of individual spots on a removable backing.
These seals result in individually sealed tubes/strips, and they can be removed from polypropylene plates by peeling, even with a plate which has been removed directly from -80°C storage.
Individual Access Peel Heat Seal forms a complete seal to a plate enabling very low temperature uses, including very low temperature storage, and high temperature uses, such as PCR (when used with a pressurized heated lid).
The seal demonstrates moderate solvent resistance and can be utilized for short term compound storage at room temperature.
This seal is available as sheets, for use with manual and semi-automated sealers, such as our Semi-Automated Sheet Heat Sealer (using the 59-2005 Individual Access adapter).
Heat sealing offers a 100% effective method of plate sealing, for complete seal integrity, as well as being quick and cost effective.
K-MBG4
SKU: 700004319
100 assays (manual) / 400 assays (auto-analyser)
| Content: | (Malt β-glucanase) 100 assays (manual) / 400 (auto-analyser) Or (Lichenase) 100 / 200 assays (manual) / 330 (auto-analyser) |
| Shipping Temperature: | Ambient |
| Storage Temperature: | Short term stability: 2-8oC, Long term stability: See individual component labels |
| Stability: | > 2 years under recommended storage conditions |
| Analyte: | β-Glucanase/Lichenase |
| Assay Format: | Spectrophotometer, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 400 |
| Signal Response: | Increase |
| Limit of Detection: | (Malt β-glucanase) 4.3 x 10-4 U/mL Or (Lichenase) 9.1 x 10-5 U/mL |
| Reproducibility (%): | ~ 3% |
| Total Assay Time: | (Malt β-glucanase) ~ 20 min Or (Lichenase) ~ 10 min |
| Application examples: | Crude malt extracts, industrial enzyme preparations. |
| Method recognition: | Novel method |
The MBG4 reagent contains a single substrate, namely 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-(31-β-D-cellotriosyl-glucoside) (BCNPBG4). The benzylidene acetal group prevents any hydrolytic action by exo-acting hydrolytic enzymes such as β-glucosidase or cellobiohydrolase.
Mixed linkage β-glucanase (endo-1,3:1,4-β-glucanase) / lichenase (EC 3.2.1.73) acts specifically to release 2-chloro-4-nitrophenol (CNP) from this substrate. The rate of release of CNP is directly related to the β-glucanase/lichenase activity in a sample. The reaction is terminated and the phenolate colour is developed on addition of Tris buffer solution (pH = 10.0).
Note that the substrate is not hydrolysed by β-glucosidase or cellobiohydrolase. The substrate can be hydrolysed by certain endo-cellulases (e.g. Trichoderma sp.) but this does not result in an increase in absorbance.
Discover more assay kits for enzyme activity measurement.
Data calculators are located in the Documents tab.
Advantages
The MBG4 reagent contains a single substrate, namely 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-(31-β-D-cellotriosyl-glucoside) (BCNPBG4). The benzylidene acetal group prevents any hydrolytic action by exo-acting hydrolytic enzymes such as β-glucosidase or cellobiohydrolase.
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