Enteropathogenic Escherichia coli

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.
Method recognition:	Novel method

This product has been discontinued (read more).

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.

Browse more cellulase and other enzyme activity assay kits.

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).

Overview

• Isolate high quality, high yield plasmid DNA
• Plasmid DNA is ready for various downstream applications including restriction digestion, bacterial transformation, sequencing and more
• Available in 4 formats: MiniPrep, MiniPrep (Magnetic Bead System), 96-Well MiniPrep (Magnetic Bead System), and MaxiPrep

These kits are designed for the rapid preparation of plasmid DNA from Escherichia coli.

Plasmid MiniPrep Kit

This kit is designed for the rapid preparation of plasmid DNA from small cultures of Escherichia coli using convenient spin columns. The plasmid DNA is preferentially purified from other cellular components such as genomic DNA and RNA. This kit is able to purify plasmids up to 13,000 bp in size, and the typical purification yield is up to 20 μg from 1.5 mL of bacterial culture. Purified DNA is of excellent quality for transformation, restriction enzyme digestion, sequencing and more. Also available in a 96-well format.

Plasmid MiniPrep Kit (Magnetic Bead System and High Throughput Magnetic Bead System)

Norgen’s Plasmid MiniPrep Kit (Magnetic Bead System) is designed for the rapid preparation of plasmid DNA from small batch cultures of Escherichia coli. Norgen’s magnetic beads bind DNA under optimized salt concentrations and release the bound DNA under low salt and slightly alkali conditions. The plasmid DNA is preferentially purified from other cellular components such as genomic DNA and RNA. The purified plasmids are fully digestible with all restriction enzymes tested, and are completely compatible with real-time PCR and NGS.

Norgen’s Plasmid MiniPrep Kit (Magnetic Bead System) is also available in a 96-well (HT) format for high throughput applications. Purification with the 96-well plates can be integrated with a robotic automation system.

Plasmid MaxiPrep Kit

This kit is designed for the rapid spin column preparation of plasmid DNA from up to 100 mL of Escherichia coli cultures. The kit allows for the isolation of plasmid DNA with final endotoxin levels of 0.1 EU/µg of DNA or less. The kit is able to purify plasmids up to 13,000 bp in size, and typical yields from a 100 mL culture for a high copy number plasmid are between 0.4 and 1.0 mg. The purified DNA is fully digestible with all restriction enzymes tested, and is completely compatible with manual or automated sequencing to achieve 95-100% accuracy.

Details

Supporting Data

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Kit Specifications
Column Binding Capacity	1.5 mg
Average Yield from 100 mL Culture*	0.4 – 1.0 mg
Final Endotoxin Levels	< 0.1 EU/µg DNA
Time to Complete 4 Purifications	1.5 hours
Size of Plasmids Purified	Up to 13,000 bp

 * Depends on high-copy DNA and low copy DNA

Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. The RNase vial should be stored at -20°C upon arrival. Once RNase has been added to the Resuspension Solution AZ the solution should be stored at 4°C. This kit is stable for 1 year after its date of shipment.

Component	Cat. 13300 (50 preps)	Cat. 46400 (250 preps)	Cat. 46500 (4 preps)	Cat. 46600 (20 preps)	Cat. 60300 (50 preps)	Cat. 63000 (192 preps)
Resuspension Solution AZ	12 mL	60 mL	20 mL	100 mL	12 mL	2 x 20 mL
Lysis Buffer N	40 mL	80 mL	40 mL	2 x 80 mL	40 mL	2 x 40 mL
Buffer TN	20 mL	130 mL	55 mL	2 x 130 mL	20 mL	1 x 55 mL 1 x 20 mL
Wash Solution E	12 mL	2 x 18 mL	–	–	–	–
Elution Buffer K	8 mL	30 mL	–	–	8 mL	2 x 8 mL
Wash Solution J	–	–	25 mL	3 x 25 mL	–	–
Elution Buffer J	–	–	24 mL	120 mL	–	–
RNase A	1 vial	1 vial	1 vial	1 vial	1 vial	1 vial
Magnetic Bead Suspension	–	–	–	–	1 x 1.1 mL	4 x 1.1 mL
Spin Columns	50	250	–	–	–	–
Collection Tubes	50	250	–	–	–	–
DNA Maxi Spin Columns with Collection Tubes (Clear ring in column)	–	–	4	20	–	–
Maxi Spin Filter Columns with Collection Tubes (Grey ring in column)	–	–	4	20	–	–
96-Well Plate	–	–	–	–	–	2
Elution Tubes (1.7 mL)	50	250	–	–	50	–
Elution Tubes (50 mL)	–	–	4	20
96-Well Elution Plate	–	–	–	–	–	2
Adhesive Tape	–	–	–	–	–	2
Product Insert	1	1	1	1	1	1

Propargyl-PEG4-CH2CO2-NHS has a propargyl group and an NHS group. This reagent is amine reactive, thus, useful for derivatizing biomolecules with amine group. The propargyl group reacts with azides via copper catalyzed azide-alkyne Click Chemistry to form stable triazole bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Propargyl-PEG4-CH2CO2-NHS has a propargyl group and an NHS group. This reagent is amine reactive, thus, useful for derivatizing biomolecules with amine group. The propargyl group reacts with azides via copper catalyzed azide-alkyne Click Chemistry to form stable triazole bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.