DBCO-Maleimide is a sulfhydryl reactive reagent containing a maleimide group and a DBCO moiety. Maleimide group specifically and efficiently reacts with thiols to form thioether bonds. The low mass weight will add minimal spacer to modified molecules and will enable simple and efficient incorporation of DBCO moiety into cysteine-containing peptides or other thiol-containing biomolecules. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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DBCO-Maleimide is a sulfhydryl reactive reagent containing a maleimide group and a DBCO moiety. Maleimide group specifically and efficiently reacts with thiols to form thioether bonds. The low mass weight will add minimal spacer to modified molecules and will enable simple and efficient incorporation of DBCO moiety into cysteine-containing peptides or other thiol-containing biomolecules. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Other Products
Cellulase Assay Kit (CellG3 Method)
Product Info
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Product Info
K-CellG3
180 / 360 assays per kit
Content:
180 / 360 assays per kit
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:
endo-Cellulase
Assay Format:
Spectrophotometer, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
400
Signal Response:
Increase
Limit of Detection:
0.05 U/mL
Reproducibility (%):
~ 3%
Total Assay Time:
~ 20 min
Application examples:
Fermentation broths, industrial enzyme preparations and biofuels research.
The CellG3 assay reagent for the measurement of endo-cellulase (endo-1,4-β-glucanase) contains two components; 1) 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-D-cellotrioside (BCNPG3) and 2) thermostable β-glucosidase. The benzylidene blocking group prevents any hydrolytic action by the β-glucosidase on BCNPG3. Incubation with an endo-cellulase generates a non-blocked colourimetric oligosaccharide that is rapidly hydrolysed by the ancillary β-glucosidase. The rate of formation of 2-chloro-4-nitrophenol is therefore directly related to the hydrolysis of BCNPG3 by the endo-cellulase. The reaction is terminated and the phenolate colour is developed on addition of Tris buffer solution (pH 9.0).
Please note that a new assay kit (K-CellG5) is now available for the measurement of endo-cellulase. The CellG5 reagent contains a cellopentaose core and exhibits vastly improved sensitivity for some cellulases. In addition, the exchange of the benzylidene blocking group in CellG3 for 3-keto-butylidene in CellG5 improves the substrate’s water solubility significantly, allowing for a reduction in the concentration of DMSO required in the assay. As DMSO is known to inhibit certain cellulases, this is another benefit in using CellG5. Megazyme now recommends the use of K-CellG5 for all assays for the measurement of endo-cellulase.
The CellG3 assay reagent for the measurement of endo-cellulase (endo-1,4-β-glucanase) contains two components;
1) 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-D-cellotrioside (BCNPG3) and 2) thermostable β-glucosidase. The benzylidene blocking group prevents any hydrolytic action by the β-glucosidase on BCNPG3. Incubation with an endo-cellulase generates a non-blocked colourimetric oligosaccharide that is rapidly hydrolysed by the ancillary β-glucosidase. The rate of formation of 2-chloro-4-nitrophenol is therefore directly related to the hydrolysis of BCNPG3 by the endo-cellulase. The reaction is terminated and the phenolate colour is developed on addition of Tris buffer solution (pH 9.0).
Interested in the analysis of DNA or RNA modifications? Then this DNA polymerase could simplify your site-specific analysis of such modifications. The 2′-O-Me sensitive DNA polymerase was engineered to catalyse DNA synthesis from both DNA and RNA and to quantify 2′-O-methylation of nucleotides site-specifically from RNA by real-time PCR. For further information refer to the original publication.
Available upon request and for R&D use only – Contact Us
The 2′-O-Me sensitive DNA polymerase is supplied as a 5 µM solution containing glycerol and is supplied together with 10x reaction buffer.
The enzyme can also be used for real-time cycling, when adding a suitable dye.
Interested in the analysis of DNA or RNA modifications? Then this DNA polymerase could simplify your site-specific analysis of such modifications. The 2′-O-Me sensitive DNA polymerase was engineered to catalyse DNA synthesis from both DNA and RNA and to quantify 2′-O-methylation of nucleotides site-specifically from RNA by real-time PCR. For further information refer to the original publication.
Checkit Go enables you to easily measure the volumes dispensed by a robot or multi-channel pipette, in under 10 seconds. These models measure up to 8 channels at a time and are offered in volume ranges covering 2μL to 50μL.
Please choose the model that matches your volume range:
Model
Volume Range
5 μL Volumetric Verification Kit
2-5 μL
10 μL Volumetric Verification Kit
4-10 μL
20 μL Volumetric Verification Kit
8-20 μL
50 μL Volumetric Verification Kit
20-50 μL
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Checkit Go enables you to easily measure the volumes dispensed by a robot or multi-channel pipette, in under 10 seconds. These models measure up to 8 channels at a time and are offered in volume ranges covering 2μL to 50μL.
Please choose the model that matches your volume range:
