Opentrons Flex NGS Workstation

DBCO-PEG13-DBCO is a long chain click chemistry reagent DBCO will react with azide-bearing compounds or biomolecules without copper catalyst. The hydrophilic PEG spacer arm can increase water solubility and membrane permability. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DBCO-PEG13-DBCO is a long chain click chemistry reagent DBCO will react with azide-bearing compounds or biomolecules without copper catalyst. The hydrophilic PEG spacer arm can increase water solubility and membrane permability. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

K-CellG3

180 / 360 assays per kit

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).

Product Details

Kit Size:

48 Reactions

Product Name:

DNA Isothermal Rapid Amplification Kit Fluorescent Type

Kit Type:

DNA

Reaction Volume:

50 μL

Storage Temperature:

-20℃

Application:

Nucleic Acid Amplification

Type:

Fluorescent Type

Reaction Time:

20mins

High Light:

20mins home test kit

, 

DNA home test kit

, 

48 Reactions home dna test kit

Payment & Shipping Terms

Minimum Order Quantity

48T

Price

3.8$/T

Packaging Details

16T/bag,48T/box

Delivery Time

6days

Payment Terms

T/T,Paypal

Supply Ability

100000T/Month

Product Description

DNA Isothermal Rapid Amplification Kit(Fluorescent Type)Guide Manual

Product parameters:

Principle overview

This kit is based on a room temperature and constant temperature nucleic acid rapid amplification technology: at room temperature and constant temperature, the recombinase and primer form the protein/single-stranded nucleotide complex Rec/ssDNA, with the help of auxiliary proteins and single-stranded binding protein SSB , invade the double-stranded DNA template; form a D-loop region at the invasion site, and start scanning the DNA double-strands; after finding the target region complementary to the primer, the Rec/ssDNA complex disintegrates, and the polymerase also binds to The 3′ end of the primer initiates chain extension. This kit relies on the action of exonuclease at 39 ºC, adding specific molecular probes designed based on the template, and using fluorescence monitoring equipment to achieve real-time monitoring of the amplification process of the target fragment. 

Primer design

It is recommended to use primers with a length of 30-35 bp. Primers that are too short will affect amplification speed and detection sensitivity; primers are designed to avoid the formation of secondary structures that affect amplification; the amplicon length is recommended to be 150-300 bp, usually no more than 500 bp. 

Fluorescent probe design

The probe sequence does not overlap with the specific primer recognition site, is 46-52 nt in length, and the sequence avoids palindromic sequences, internal secondary structures, and continuous repeated bases. The probe has four modification sites: the middle position ≥ 35 nt from the 5′ end is labeled with a dSpacer (tetrahydrofuran, THF) as the recognition site for exonuclease; the upstream of the THF site is labeled with a fluorescent group, and the downstream Label a quenching group, the distance between the two groups is 2-4 nt; THF is ≥15 nt from the 3′ end, and the 3′ end is labeled with a modifying group, such as an amine group, a phosphate group or a C3-Spacer. 

Product features and advantages:

This kit has the advantages of high sensitivity, strong specificity,and short reaction time (only 20 minutes), and the reaction groups are in dry powder state, which is easy to operate and easy to store.

It can be applied to various brands of fluorescence quantitative PCR instruments, constant temperature fluorescence amplification instruments and other fluorescence detection equipment.

This kit is based on a room temperature and constant temperature nucleic acid rapid amplification technology: at room temperature and constant temperature, the recombinase and primer form the protein/single-stranded nucleotide complex Rec/ssDNA, with the help of auxiliary proteins and single-stranded binding protein SSB , invade the double-stranded DNA template; form a D-loop region at the invasion site, and start scanning the DNA double-strands; after finding the target region complementary to the primer, the Rec/ssDNA complex disintegrates, and the polymerase also binds to The 3′ end of the primer initiates chain extension. This kit relies on the action of exonuclease at 39 ºC, adding specific molecular probes designed based on the template, and using fluorescence monitoring equipment to achieve real-time monitoring of the amplification process of the target fragment.