The contamination of pathogenic microorganisms and their toxins in food and water is a serious issue for human health and safety. For instance, enterotoxins (SEs) produced by Staphylococcus aureus (S. aureus) are heat-stable, meaning pathological activity remains even after exposure to sterilization techniques and digestive proteases. Among the SEs, staphylococcal enterotoxin A (SEA) and B (SEB) are confirmed toxins which cause enteritis and food poisoning. Symptoms include nausea, vomiting, diarrhea, which in
severe cases, may lead to fatalities in children and the elderly. These SEs, known as superantigens, non-specifically activate Tcells, leading to proliferation which ultimately results in T-cell elimination. This activation directly and indirectly induces a massive release of inflammatory cytokines.
In addition to acute poisoning, researchers reported that these toxins may play roles in the pathogenesis of autoimmune diseases. More specifically, intestinal dysbiosis (enteromicrobial imbalance) was found in patients with rheumatoid arthritis (RA) and which may overwhelm the host immune defense functions by chronic exposure to excess amounts of these pathogens (7, 8). In animal models, SEs synergistically play a role in the pathogenesis of autoimmune-related diseases, such as atopic dermatitis, food allergies, colitis, arthritis, and systemic lupus erythematosus.
Attogene is offering this highly robust test to detect SEB by lateral flow in diverse liquid sample types.
Rapid dipstick test for detecting Staphylococcus Enterotoxin B (SEB) in liquid samples
Detects 10 ppb and greater Staphylococcus Enterotoxin B (SEB) in the sample
This kit is designed for the rapid spin column preparation of genomic DNA from 2 x 109 viable bacterial cells (between 0.5 and 1.0 mL of culture). This kit can be used for both Gram-negative and Gram-positive bacteria including Escherichia coli and Bacillus cereus. Purified genomic DNA is of an excellent quality and yield, and is fully compatible with restriction enzyme digestions, sequencing, PCR, qPCR and more. Also available in 96-well format for high throughput applications.
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| Kit Specifications (96-well) | |
| Maximum Input | 2 x 109 bacterial cells |
| Well Binding Capacity | 25 µg |
| Average Yield* | Up to 20 µg* |
| Time to Complete 10 Purifications | 90 minutes |
* Yield will vary depending on the type of sample processed
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 1 year after the date of shipment. The kit contains a ready-to-use Proteinase K, which is dissolved in a specially prepared storage buffer. The buffered Proteinase K is stable for up to 1 year after the date of shipment when stored at room temperature.
| Component | Cat. 17900 (50 preps) | Cat. 17950 (192 preps) |
|---|---|---|
| Resuspension Solution A | 20 mL | 60 mL |
| Lysis Buffer P | 18 mL | 60 mL |
| Solution BX | 28 mL | 110 mL |
| Wash Solution A | 18 mL | 2 x 38 mL |
| Elution Buffer B | 30 mL | 2 x 30 mL |
| Proteinase K | 12 mg | 50 mg |
| Spin Columns | 50 | – |
| 96-Well Plate | – | 2 |
| Adhesive Tape | – | 4 |
| Collection Plate | – | 2 |
| Collection Tubes | 50 | – |
| Elution Tubes (1.7 mL) | 50 | – |
| Elution Plate | – | 2 |
| Product Insert | 1 | 1 |
endo-BCN-PEG8-amine is a PEG linker featuring a BCN and a primary amine. The BCN group is a click chemistry handle which quickly reacts with azides while the primary amine can be used to form amides with carboxylic acids in the presence of coupling reagents such as HATU or EDC.
endo-BCN-PEG8-amine is a PEG linker featuring a BCN and a primary amine. The BCN group is a click chemistry handle which quickly reacts with azides while the primary amine can be used to form amides with carboxylic acids in the presence of coupling reagents such as HATU or EDC.