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                首頁 > 產品中心 > 生化試劑 > 其它生化試劑 > abs42024900百日咳毒素PTX,Pertussis Toxin
                
        
                
        
    
                
    
    
                
        
        
                 
            
                
        
                
                                
                    
                
                        
                        
                
                        
                        
                
                    
                
                    
                
                        
                
                            
                                          
                                 
                                  
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                百日咳毒素PTX,Pertussis Toxin
                
                
                簡要描述：百日咳毒素是由細菌Bordetella pertussis產生的，以蛋白質為基礎的AB5型外毒素。是特定靶向G蛋白抑制G蛋白及其在信號通路中的生理功能，在傳染方面發揮重要作用；還能在鼠類動物中刺激建立實驗性自身免疫疾病模型。
                
                
                  
                    
                • 產品型號：abs42024900
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                • 廠商性質：生產廠家
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                • 更新時間：2025-06-13
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                • 訪  問  量：4843
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                品牌absinCAS70323-44-3
                分子式-純度>99%
                分子量-貨號abs42024900
                規格50ug供貨周期現貨
                主要用途特定靶向G蛋白抑制G蛋白及其在信號通路中的生理功能應用領域醫療衛生,環保,化工,生物產業,農林牧漁
                
                            
                                        
                    
                
                
                產品描述
                描述
                Pertussis Toxin (islet-activating protein), a toxin originally isolated from Bordetella pertussis, has been shown to catalyze ADP-ribosylation of a protein in membrane preparation from rat C6 glioma cells. In addition, exposure of Chinese hamster ovary cells in culture to this compound has resulted in a clustered growth pattern response. Other experiments have shown Pertussis Toxin to block the ability of inhibitory hormones to reduce adenylate cyclase activity and enhance the ability of stimulatory hormones to activate the enzyme. Mechanistic studies have shown this toxin to consist of subunit A (active) promoter, which disrupts transmembrane signaling by ADP-ribosylating eukaryotic G-proteins, and B (binding) oligomer which helps the toxin bind to cells in vivo.
                應用
                A toxin that blocks reduction of adenylate cyclase activity
                純度
                >99%
                活性
                Please note that this product is not activated. If your system requires activation, see Kaslow et al.,7 for suggested conditions.
                使用方法
                CHO Cell Assay: When examined in a CHO cell assay as described by Hewlett et al.,5 the lowest concentration of toxin at which a positive response (clustered growth pattern) was obtained was 0.01 ng/ml.

                Adenylate Cyclase Assay: The adenylate cyclase activity of this lot is 0.67 picomole/min/lJg in the presence of 1 μmolar calmodulin when assayed by the method of Wolff et al. 6
                儲存/保存方法
                This product is provided as an aseptically packaged lyophilized powder, sealed under vacuum. Store at 4°C prior to and following reconstitution, for 6 months. DO NOT FREEZE.
                基本信息
                外觀
                Lyophilized solid
                可溶性/溶解性
                Soluble in water (Miscible). Reconstitute with sterile purified water or the sterile buffer of your choice. The resulting suspension should be made uniform by gentle mixing prior to use. Do not sterile filter, as this will result in loss of material. For long term storage, reconstitute in a high ionic strength buffer, such as sterile 0.1 M sodium phosphate, pH 7.0, 0.5 M NaCI. Handle the product gently; do not vortex.
                參考文獻
                參考文獻
                1. Bradford, M.M. (1976) Anal. Biochem. 72, 248-254.
                2. Tamura, M., Nogomori, K., Murai, S., Yajima, M., Ito, K" Katada, T., Ui, M. and Ishi, S. (1982) Biochem. 21,5516-5522.
                3. Wyckoff, M., Rodbard, O. And Chramback, A. (1977) Anal. Biochem.78, 459-482.
                4. Laemmli, U.K. (1970) Nature 227, 680-685.
                5. Hewlett, E.L., Sauer, K.T., Myers, G.A., Cowell, J.L. and Guerrant, R.L. (1983) Infect. Immun. 40, 1198-1203.
                6. Wolff, J., Cook, G.H., Goldhammer, A.R. and Berkowitz, S.A. (1980) PNAS 77, 3841-3844.
                7. Kaslow, H.R., Lim, L.-K., Moss, J. and Lesikar, D.O. (1987) Biochem. 26, 123-127.
                
                
                
                
                
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