DBCO-PEG4-C3-sulfonic acid serves as a bifunctional PEG linker. The DBCO click chemistry handle conjugates with azides on target molecules to form stable triazole linkages. The sulfonic acid can participate in esterification, halogenation and displacement reactions.
DBCO-PEG4-C3-sulfonic acid serves as a bifunctional PEG linker. The DBCO click chemistry handle conjugates with azides on target molecules to form stable triazole linkages. The sulfonic acid can participate in esterification, halogenation and displacement reactions.
This kit provides a fast, reliable and convenient method to isolate and concentrate exosomal RNA from previously purified exosomes. It allows for the isolation of RNA from intact extracellular vesicles (EVs) purified from different urine or plasma/serum sample volumes. The purification is based on Norgen’s proprietary resin.
The Exosomal RNA Isolation Kit is designed to isolate all sizes of RNA, including microRNA. Moreover, the kit allows the user to elute into a flexible elution volume ranging from 50 µL to 100 µL. The purified RNA is of the highest integrity, and can be used in a number of downstream applications including real time PCR, reverse transcription PCR, Northern blotting, RNase protection and primer extension, and expression array assays.
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| Kit Specifications | |
| Sample type | Exosomes purified using Norgen’s Purification Kits and most other methods |
| Size of RNA Purified | All sizes, including miRNA and small RNA (< 200 nt) |
| Elution Volume | 50-100 μL |
| Time to Complete 10 Purifications | 35-40 minutes |
| Average Yields* | Variable depending on specimen |
*Please check page 5 of the product insert for the average yields and the common RNA quantification methods.
Storage Conditions and Product Stability
All buffers should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment. It is recommended to warm Lysis Buffer A for 20 minutes at 60°C if any salt precipitation is observed.
| Component | Cat. 58000 (50 preps) |
|---|---|
| Lysis Buffer A | 20 mL |
| Lysis Additive B | 2 mL |
| Wash Solution A | 18 mL |
| Elution Solution A | 6 mL |
| Mini Spin Columns | 50 |
| Collection Tubes | 50 |
| Elution Tubes (1.7 mL) | 50 |
| Product Insert | 1 |
K-DMAL
100 assays (manual) / 1000 assays (microplate) / 1100 assays (auto-analyser)
| Content: | 100 assays (manual) / 1000 assays (microplate) / 1100 assays (auto-analyser) |
| 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: | D-Malic Acid |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Increase |
| Linear Range: | 0.5 to 40 µg of D-malic acid per assay |
| Limit of Detection: | 0.26 mg/L |
| Reaction Time (min): | ~ 6 min |
| Application examples: | Wine, beer, fruit juices, soft drinks, dietetic foods, candies, fruit and vegetables, cosmetics, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Methods based on this principle have been accepted by EEC, EN, DIN, OIV, IFU, and AIJN |
This product has been discontinued (read more).
The D-Malic Acid assay kit is suitable for the specific measurement and analysis of D-malic acid (D-malate) in beverages and food products.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
Interested in more assay kits? See our complete list of organic acid assay kits.
Advantages
The D-Malic Acid assay kit is suitable for the specific measurement and analysis of D-malic acid (D-malate) in beverages and food products.
Description
The RNAok™ RNase Inhibitor is a recombinant mammalian RNase inhibitor which possesses very high affinity for eukaryotic pancreatic-type ribonuclease. The RNAok™ RNase Inhibitor forms a 1:1 complex with pancreatic RNase A by noncovalent binding, presenting a noncompetitive inhibitory activity on these pancreatic enzymes. RNAok™ RNase Inhibitor is active against RNase A, RNase B, RNase C but not RNAse H, RNase I, RNase T1, RNase T2, and S1 nuclease. RNAok™ RNase Inhibitor is compatible with RT-PCR enzymes such as AMV, M-MLV and ExcelRT™ Reverse Transcriptase or Taq DNA polymerase.
Application
Storage Buffer
40 mM HEPES-KOH (pH 7.5), 100 mM KCl, 8 mM DTT, 0.1 mM EDTA, stabilizer and 50% (v/v) glycerol
Storage
-20°C for 24 months
The RNAok™ RNase Inhibitor is a recombinant mammalian RNase inhibitor which possesses very high affinity for eukaryotic pancreatic-type ribonuclease. The RNAok™ RNase Inhibitor forms a 1:1 complex with pancreatic RNase A by noncovalent binding, presenting a noncompetitive inhibitory activity on these pancreatic enzymes. RNAok™ RNase Inhibitor is active against RNase A, RNase B, RNase C but not RNAse H, RNase I, RNase T1, RNase T2, and S1 nuclease. RNAok™ RNase Inhibitor is compatible with RT-PCR enzymes such as AMV, M-MLV and ExcelRT™ Reverse Transcriptase or Taq DNA polymerase.
