DBCO-PEG2-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Detail
DBCO-PEG2-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Goat Anti-Rabbit (GAR) Conjugated Colloidal Gold for Lateral Flow (1mL of 10OD)
Product image shows functional testing of Goat Anti Mouse (GAM) 40nm colloidal gold on a lateral flow test.
Our products are produced in a state-of-the-art manufacturing facility that enable rapid turnaround times while ensuring batch to batch consistency and reliability.
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Functionally tested GAM conjugated gold
Perfect for Lateral Flow Development and use in final product
40nm gold particles conjugated to GAM are offered in 10 OD 1mL size. If a different OD or amount is required please
For the rapid detection and enumeration of Escherichia coli.
Principle:
Peptone and yeast extract powder provides carbon and nitrogen sources and trace elements; sodium chloride maintains osmotic equilibrium; agar as medium coagulant; dodecyl sulfate inhibit Gram-positive bacteria; chromogenic substrate and large intestine coli β- glucuronidase enzyme specific reaction, hydrolysis of the substrate, the release of the color groups produce green colonies on the light yellow plate.
Formulation (per liter):
Peptone :15.0g
Yeast extract powder: 3.0g
Sodium chloride: 5.0g
Sodium lauryl sulfate:0.1g
Agar: 12.0g
Chromogenic substrate 6.5g
Final pH 7.0 ± 0.2
How to use:
1. Weigh 41.6g of the product, adding 1.0L distilled or deionized water, heated to boiling stirring until completely dissolved, dispensing into flask, 115 autoclaved for 10minutes.
2. Take 25.0g or 25.0ml of sample with sterile procedures , added to the flask containing 225.0mL of sterile phosphate buffered saline (or saline) , shaken thoroughly homogenized with a homogenizer or a 1:10 dilution of 1min solution, diluted 1:10 and then continue to select the appropriate serial dilutions of three, the two plates inoculated with each dilution, poured dissolved by heating and cooled to about 45 medium.
3, observe the results.
Quality Control
This product appears light yellow after the pouring on plate, these strains were inoculated after 36 ± 1 18 ~ 24h culture growth in the following table.
Bacteria name Bacteria NO. Growth Situation Feature
Escherichia coli ATCC25922 good green colonies
Citrobacter ATCC8090 good colorless colonies
Salmonella typhimurium CMCC50115 good colorless colonies
Enterococcus faecalis ATCC29212 suppressed —–
Storage: Store in a dark, cool and dry place, tighten the caps immediately after use. Storage period of two years.
PACE (PCR Allelic Competitive Extension) genotyping chemistry is a homogeneous, PCR-based allele-specific technology for the analysis of DNA sequence variants, most commonly SNPs (Single Nucleotide Polymorphisms) and Indels (insertion / deletions).
PACE genotyping chemistry is comprised of two parts:
PACE Genotyping Assay: two allele-specific forward primers and one common, reverse primer. The allele-specific forward primers each have different 3′ terminal bases reflecting the target variant, and a unique 5’ tail sequence which is incorporated as part of the fluorescent signal mechanism.
PACE Genotyping Master Mix: containing all remaining components required for PCR and the generation of fluorescent signals. PACE Genotyping Master Mix contains a novel, universal, fluorescent reporting cassette to produce machine-readable fluorescent signals (FAM and HEX) corresponding to the assay genotypes.
When combined with sample DNA, these components create a PACE Genotyping Reaction, as illustrated in the figure below.
We have extensive knowledge and experience in assay design, especially when it comes to allele-specific PCR. PACE Genotyping Assays are available to purchase either Validated and Unvalidated. Validated assays require customer DNA to validate and optimise, for guaranteed performance. Unvalidated assays are designed in silico and supplied untested.
REQUIRED COMPONENTS
qPCR machine or Thermocycler + Fluorescent plate reader
PCR plate or equivalent and appropriate optically clear seal
Template DNA
PCR-grade water
PACE Genotyping Master Mix or PACE 2.0 Genotyping Master Mix
STEPS TO YOUR PACE GENOTYPING ASSAY DESIGN
Place your order on this page. Our support team will contact you by email.
Fill out an Assay Design Template form with all the information we need to process your custom PACE Genotyping Assay order. We will email you a copy of the template when we first contact you, or your can download a copy here.
Using the information you provide us, we will create your PACE Genotyping Assay designs, order the oligos, and send you design sequences.
Once we receive the oligos, we assemble the assay(s) and then ship an aliquot to you (unvalidated) or test on your DNA samples before shipping the aliquot to you (validated).