DBCO-NHCO-PEG5-NHS ester is a PEG linker containing NHS ester that is able to react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and can also provide a long and flexible connection that minimizes steric hindrance during ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Detail
DBCO-NHCO-PEG5-NHS ester is a PEG linker containing NHS ester that is able to react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and can also provide a long and flexible connection that minimizes steric hindrance during ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Other Products
Endotoxin Removal Kits- For DNA
Product Info
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Product Info
Overview
Reduce endotoxin levels to 0.1 EU/µg DNA or less
Available in 3 formats: Mini, Midi, and Maxi to suit your desired input volume
Remove endotoxins from up to 1 mg of DNA with the Maxi format kit
Fast and easy processing using a rapid spin-column format
These kits are designed for the rapid spin column removal of endotoxins from previously purified DNA. Norgen’s spin columns bind DNA while endotoxins, salts and other contaminants are washed away. These kits reduce endotoxins to 0.1 EU/μg DNA or less providing plasmid DNA that is immediately ready for transfections or other endotoxin-sensitive applications. Typical recovery of DNA is >90% of the starting sample.
Endotoxin Removal Kit (Mini)
This kit is designed for the rapid spin column removal of endotoxins from up to 25 µg of previously purified DNA. The convenient spin column procedure can be completed in approximately 20 minutes.
Endotoxin Removal Kit (Midi)
This kit is designed for the rapid spin column removal of endotoxins from up to 200 μg of previously purified DNA. The convenient spin column procedure can be completed in approximately 30 minutes.
Endotoxin Removal Kit (Maxi)
This kit is designed for the rapid spin column removal of endotoxins from up to 1 mg of previously purified DNA. The convenient spin column procedure can be completed in approximately 30 minutes.
About Endotoxins
Endotoxins (also called lipopolysaccharides), are cell-membrane components of Gram-negative bacteria such as E. coli. Endotoxins are released during the lysis step of plasmid purification and significantly reduce transfection efficiencies in endotoxin sensitive cell lines. Therefore, the removal of endotoxins from plasmid preparations is often necessary prior to the use of the DNA in such downstream applications.
Storage Conditions and Product Stability All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment.
Cryptosporidium is a parasite found in water that causes an infection in mammals termed cryptosporidiosis. It is one of the most common water-borne diseases and is found world-wide. It affects the intestines of mammals and typically causes an acute short-term infection. The most common symptom is self-limiting diarrhea in healthy individuals, however in immunocompromised individuals the symptoms are particularly severe and often fatal. There is no specific treatment for cryptosporidiosis other than fluid rehydration and management of any pain. Therefore early detection of Cryptosporidium in water is the foremost action to prevent the infection.
Cryptosporidium TaqMan RT-PCR Kit, 24 reactions
Ready to use format, including Master Mix for the target and PCR control to monitor for PCR inhibition and validate the quality
Specific Primer and Probe mix for the pathogen/virus/viroid of interest
Primer and Probe mix
Positive and negative control to confirm the integrity of the kit reagents
The Cryptosporidium TaqMan PCR Kit Dx is shipped on dry ice. The components of the kit should be frozen upon arrival. If one or more of the components is not frozen when the kit is received, or if any of the components have been compromised during shipment, please contact Norgen Biotek for assistance. All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 3 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots.
Mastitis is the single most costly disease of dairy cattle resulting in the reduction of milk yield and quality. The inflammation of the utter is mainly caused by infection of various bacteria. Streptococcus uberis is a gram-positive bacterium that is known worldwide as an environmental pathogen responsible for a high proportion of cases of mastitis in lactating cows and is also the predominant organism isolated from mammary glands during the non-lactating period. Often it is resistant to treatment and causes persistent high somatic cell counts without clinical mastitis.
Storage Conditions and Product Stability All kit components can be stored for 2 years after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival.
