半岛bd体育手机客户端 说明
一般描述
Staphylococcus aureusis a Gram-positive bacterium, that causes disease in the human population including food poisoning and toxic shock syndrome.1S. aureusexpresses several secreted virulence factors, such as various enzymes, cytotoxins, exotoxins, and exfoliative toxins.1 Exotoxins include more than 20 serologically classified staphylococcal enterotoxins (SEs)
特异性
Monoclonal Anti-Staphylococcal Enterotoxin B antibody specifically recognizes staphylococcal enterotoxin B (SEB) and has no cross reactivity with staphylococcal enterotoxin A (SEA), cholera toxin, or pseudomonas exotoxin A.
应用
The antibody may be used in various immunochemical techniques including Immunoblotting and ELISA. Detection of the staphylococcal enterotoxin B bands by Immunoblotting is specifically inhibited by the immunogen.
生化/生理作用
Exotoxins include more than 20 serologically classified staphylococcal enterotoxins (SEs). The best characterized are the SEs A, B through V, and toxic shock syndrome toxin-1 (TSST-1). These enterotoxins are similar in activity, sequence, structure, and molecular mass (25-30 kDa).1-3 SEA and SEB are known as superantigens due to their ability to bind class II MHC molecules on antigen presenting cells. This binding stimulates extensive T-cell activation followed by massive cytokine release leading to an acute toxic shock.1-4 SEB is also classified as a category B select agent and is important toxicant in biodefense research.5-9SE proteins have a significant resistance to heat and acid, and are also resistant to gastrointestinal proteases including pepsin, trypsin, rennin, and papain. Thus, inactivating theS. aureusbacteria may not be sufficient to eliminate the risk of its superantigens from causing food poisoning.1SEB contamination can be caused by both its ingestion (resulting with food poisoning) or by inhalation (resulting with respiratory symptoms of cough and dyspnea), therefore SEB detection is a major challenge in the food industry.1,3,5-10
外形
Supplied as a solution in 0.01 M phosphate buffered saline pH 7.4, containing 15 mM sodium azide as a preservative.
储存及稳定性
For continuous use, store at 2-8℃ for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilution samples should be discarded if not used within 12 hours.
免责声明
Unless otherwise stated in our catalog our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses,in vitrodiagnostic uses,ex vivoorin vivotherapeutic uses or any type of consumption or application to humans or animals.
半岛bd体育手机客户端 性质
| 质量水平 | 200 |
| 抗体形式 | purified from hybridoma cell culture |
| 克隆 | SEB4 |
| 形式 | liquid |
| species reactivity | Staphylococcus aureus((Staphylococcal enterotoxin B)) |
| 浓度 | ~1 mg/mL |
| technique(s) | ELISA: 0.12-0.25 μg/mL using 1 μg/ml staphylococcal enterotoxin B for coating. immunoblotting: 0.5-1 μg/mL using staphylococcal enterotoxin B. |
| 同位素/亚型 | IgG1 |
| UniProt登记号 | P01552 |
| 运输 | dry ice |
| 储存温度 | ?20℃ |
安全信息
| 储存分类代码 | 12 - Non Combustible Liquids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
m.cnreagent.com
