Methyltetrazine-PEG7-DBCO is a PEG linker with a terminal TCO reactive reagent and a DBCO group. DBCO is commonly used for copper-free Click Chemistry reactions. Methyltetrazine can be used to convert azido-containing peptides or proteins into tetrazine-modified peptides or protein without catalyst or axillary reagents. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Methyltetrazine-PEG7-DBCO is a PEG linker with a terminal TCO reactive reagent and a DBCO group. DBCO is commonly used for copper-free Click Chemistry reactions. Methyltetrazine can be used to convert azido-containing peptides or proteins into tetrazine-modified peptides or protein without catalyst or axillary reagents. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Alkyne-ethyl-PEG1-t-Butyl ester has an alkyne group and a t-butyl protected carboxyl group. The alkyne reacts with azide compounds or biomolecules via copper catalyzed Click Chemistry to form a stable triazole linkage. Thecarboxyl group group can be deprotected under mild acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Alkyne-ethyl-PEG1-t-Butyl ester has an alkyne group and a t-butyl protected carboxyl group. The alkyne reacts with azide compounds or biomolecules via copper catalyzed Click Chemistry to form a stable triazole linkage. Thecarboxyl group group can be deprotected under mild acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Norgen’s Stool Nucleic Acid Collection and Preservation Tubes are designed for the rapid preservation of nucleic acids from fresh stool specimens. The Stool Nucleic Acid Collection and Preservation Tubes contain Norgen’s Stool Preservative in a liquid format. The user simply collects stool into the tubes (fill up to the line indicated on the tube) and mixes gently until the stool is well submerged under the preservative. The Stool Preservative prevents the growth of Gram-negative and Gram-positive bacteria and fungi, and also inactivates viruses allowing the resulting non-infectious samples to be handled and shipped safely. In addition, the Stool Preservative eliminates the need to immediately process or freeze samples and allows the samples to be shipped to centralized testing facilities at ambient temperatures. The components of the Stool Preservative allow samples to be stored at room temperature for over 2 years for DNA and 7 days for RNA. To extend the stool RNA stability in the preservative, storage at -20°C or -70°C is recommended at the arrival to testing facilities until the RNA purification.
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| Kit Specifications | |
| Stool Input | 2 g |
| Stability of Stool Nucleic Acids at Room Temperature | 2 years for DNA 7 days for RNA* |
* The RNA stability will vary depending on the samples
Storage Conditions and Product Stability
All tubes should be kept tightly sealed and stored at room temperature (15 – 25 °C) for 2 years after the date of shipment without any reduction in performance.
| Kit Components | Cat. 45660 |
|---|---|
| Stool Nucleic Acid Collection and Preservation Tubes | 50 |
| Product Insert | 1 |
| Clone | IHC410 |
| Source | Mouse Monoclonal |
| Positive Control | Colon, Colon Carcinoma |
| Dilution Range | 1:200 |
MutS Homolog 2 (MSH2) is a protein involved in the mismatch-repair pathway. This protein is commonly associated with hereditary non-polyposis colorectal cancer, and mutations in this gene are correlated with the development of sporadic colorectal carcinoma. Expression levels of MSH2 are abnormally low in a high percentage of patients with microsatellite instability, as well as endometrial and ovarian cancers. Use of Anti-MSH2 is optimized when paired in an IHC panel with antibodies against MSH6, MLH1, and PMS2. Reports have shown Anti-MSH2 to be useful in the detection of the protein in a number of normal and neoplastic tissues, and for identifying a loss of MSH2 in tumors that are microsatellite-unstable.
