中文名称

Exotoxin A, Pseudomonas aeruginosa

英文名字

Exotoxin A, Pseudomonas aeruginosa

供应商

USBiological

产品货号

215940

产品报价

￥1/1mg

产品说明书

点击查看

购买方式

银行转账、电汇、支票、现金，在线支付宝及网银支付，或直接与我们电话联系400-6800-868

产品新闻

背景资料

USBiological品牌是全球有名的抗原抗体和生化试剂供应商，生产世界上种类最多的抗体，用于Western Blot、免疫沉淀、免疫荧光、免疫组化和流式细胞术等多种检测方法。武汉艾美捷科技作为USBiological品牌中国区域总代理，是行业中少有的致力于服务客户，帮助客户，且拥有独立的专业销售团队、技术支持团队、市场营销团队、进出口报关团队的高科技生物企业。可以为您提供及时的咨询响应，专业的产品和解决方案支持，稳健快捷的交货周期，优质放心的售后服务。我们致力于为您提供有价值的产品和服务，在意您的成功！

产品描述

Exotoxin A is one of the toxic proteins released by pathogenic strains of Pseudomonas aeruginosa. It is secreted as a proenzyme with a molecular weight of 66kD. Like diphtheria toxin, exotoxin A is translocated into susceptible mammalian cells. Covalent alteration of the molecule occurs, rendering it enzymatically active. The intact toxin can be activated 20- to 50-fold in vitro by treatment with urea and dithiothreitol. Exotoxin A catalyzes the transfer of the adenosine diphosphate ribose moiety of oxidized nicotinamide adenine dinucleotide onto elongation factor 2(3): NAD + EF-2 ® ADP-ribose-EF-2 + nicotinamide + H+. This ADP-ribosylation of EF-2 blocks polypeptide assembly on the surface of the ribosome. As a result, this molecule is cytopathic for a number of cultured cell lines and is toxic to animals. Although exotoxin A and diphtheria toxin have identical enzymatic activity, they exhibit distinct target cell specificities and are immunologically unrelated. In crude preparations or in purified material which has been stored, lower molecular weight peptides with ADP-ribosylating activity may be present. Similarly, after reduction and limited proteolytic cleavage with chymotrypsin, a 26,000 dalton fragment that has enzymatic activity may be separated. This fragment alone is not toxic to intact cells.Source: Exotoxin A from Pseudomonas aeruginosaApplications: Suitable for use in immunodiffusion. Other applications not tested.Recommended Dilution:Optimal dilutions to be determined by the researcher.Storage and Stability:Lyophilized powder may be stored at 4°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at 4°C. Reconstituted product is stable for 6 months at 4°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

产品形式

该产品为冻干粉 in 0.01M sodium phosphate, pH 7.5, 0.15M sodium chloride，缓冲液为：1ml sterile ddH2O。 Handle Gently。Do not vortex。

保存建议

接收到Exotoxin A, Pseudomonas aeruginosa产品后，置于4°C Do Not Freeze温度下保存。

其他

Usbiological公司是美国著名的抗体和生化试剂供应商，生产世界上种类最多的抗体，用于Western Blot、免疫沉淀、免疫荧光、免疫组化和流式细胞术等多种检测方法。Usbiological公司现已拥有超过50,19234种抗体、抗原和生化产品，为科研用户提供了诸多超值选择。

注意

该页面的中文产品信息的翻译，仅供参考。准确的产品信息请以厂家的英文说明书为准。下单前，请浏览说明书确认。

分享到：