霍亂毒素產(chǎn)品(Cholera Toxins,CTX)
同義名: Cholera enterotoxin; Choleragen; 霍亂腸毒素;霍亂腸菌素;
搜索關(guān)聯(lián)詞: 霍亂毒素(Cholera toxin); 霍亂類毒素Choleragenoid;霍亂毒素B亞基(CTB);霍亂毒素B亞單位;腺苷酸環(huán)化酶 (Adenylate cyclase,AC);Forskolin 佛司可林;
基本介紹: 霍亂毒素(Cholera toxin,CTX)是霍亂弧菌產(chǎn)生的毒力因子,會(huì)引起嚴(yán)重腹瀉以及人體脫水。CTX是一種分子量約84kDa的 寡蛋白,包含一個(gè)A亞基以及包圍在周圍的5個(gè)B亞基構(gòu)成。CTX是一種有效的腺苷酸環(huán)化酶(Adenylate cyclase,AC)活化 劑,也是負(fù)責(zé)霍亂癥狀的病原物質(zhì)?;魜y毒素B亞基(a.k.a. 霍亂類毒素choleragenoid)負(fù)責(zé)全毒素識(shí)別并結(jié)合到哺乳動(dòng)物細(xì) 胞表面的GM1神經(jīng)節(jié)苷脂受體,促進(jìn)A亞基進(jìn)入細(xì)胞;A亞基承擔(dān)ADP核糖轉(zhuǎn)移酶(ADP-ribosyl-transferase)活性,此酶能 下調(diào)Gs蛋白表達(dá)并活化AC酶,進(jìn)而促進(jìn)cAMP水平提高。A亞基還能ADP核糖基化視桿細(xì)胞外節(jié)膜盤的轉(zhuǎn)運(yùn)蛋白,使得GTPase 失活。歸因于GM1神經(jīng)節(jié)苷脂受體普遍存在于真核細(xì)胞膜上,CTX用于各種各樣的模型系統(tǒng)中活化腺苷酸環(huán)化酶(AC)。CTX 還是一種的黏膜疫苗佐劑,通過(guò)抑制IL-12生產(chǎn)來(lái)誘導(dǎo)2型輔助性T細(xì)胞的免疫應(yīng)答。
生理功能: 霍亂毒素(Cholera toxin,CTX)由霍亂弧菌(Vibrio cholerae)代謝純化所得,不僅在微生物學(xué)是一種強(qiáng)大的研究工具,還 普遍用于生理學(xué)、細(xì)胞生物學(xué)和生物化學(xué)。因其對(duì)腺苷酸環(huán)化酶(AC)的效應(yīng),CTX通常用來(lái)研究信號(hào)轉(zhuǎn)導(dǎo)機(jī)制。 2)CTX通過(guò)刺激B淋巴細(xì)胞活性用作一種佐劑;(與疫苗佐劑的開(kāi)發(fā)有關(guān),CTX有效調(diào)節(jié)哺乳動(dòng)物細(xì)胞免疫系統(tǒng),用作一種聯(lián) 合抗原共同注射的佐劑) 3)純化的霍亂毒素B亞基(Cholera toxin B subunit)用于神經(jīng)研究方面的神經(jīng)示蹤,利用其GM1 神經(jīng)節(jié)苷脂結(jié)合和逆行轉(zhuǎn) 運(yùn)特點(diǎn)。
基本參數(shù):
1.CAS NO:9012-63-9
2.純度:>95%(When examined by polyacrylamide gel electrophoresis in a non-denaturing system run at alkaline pH, this protein migrates as a single major band. When examined on SDS-PAGE, all subunits, A, A1, A2, and B, are present. Densitometric analysis estimates the purity as >95%. The 280 to 260 nm ratio of absorbance (R280/260) is 2.
3.內(nèi)毒素:~5 EU/mg (determined using a kinetic chromogenic LAL assay)
4.生物活性:Hemagglutination activity is assessed with trisialoganglioside fixed sheep red blood cells using a modification of the method described by Sato, et al. This lot met the specification of exhibiting hemagglutination activity at a toxin dilution ≤1.6µg/ml.
產(chǎn)品信息
List labs提供凍干粉形式的霍亂毒素(Cholera Toxin,CTX,CT)和霍亂毒素B亞基,所有產(chǎn)品經(jīng)過(guò)內(nèi)毒素去除和無(wú)菌處理。 并經(jīng)過(guò)嚴(yán)格的純度和生物活性檢測(cè),是高質(zhì)量的研究工具。部分現(xiàn)貨供應(yīng),*,
品牌 listbabs 101B listbabs 100B listbabs 104
List Biological laboratories
品名 | 貨號(hào) | 規(guī)格 |
Cholera Toxin from Vibrio cholerae | 101B | 1mg |
Cholera Toxin (AZIDE-FREE) from Vibrio cholerae | 100B | 1mg |
Cholera Toxin B Subunit (Choleragenoid) from Vibrio cholerae 103B 1mg Cholera Toxin B Subunit (Choleragenoid) from Vibrio cholerae in Low Salt | 104 | 0.5mg |
延伸產(chǎn)品:部分現(xiàn)貨供應(yīng),*,
品牌
List Biological laboratories listbabs 106 listbabs 112 listbabs 703
品名 | 貨號(hào) | 規(guī)格 |
Cholera Toxin B Subunit (CTB) from Vibrio cholerae FITC, Conjugate | 106 | 0.2mg |
Cholera Toxin B Subunit Biotin Conjugate | 112 | 0.2mg |
Anti-Cholera Toxin B Subunit (Goat) | 703 | 0.1ml |
【應(yīng)用說(shuō)明】: 1)霍亂毒素B亞基(CTB)偶聯(lián)物用于軸漿運(yùn)輸和神經(jīng)元連接研究中的組織化學(xué)標(biāo)志物(histochemical markers)。
2)Goat Anti-Cholera Toxin B Subunit (Choleragenoid)適用于中和(Neutralization)和結(jié)合實(shí)驗(yàn),或與未標(biāo)記霍亂毒素B 亞基聯(lián)合的免疫組化研究
medchemexpress HY-P1446
品牌medchemexpress
目錄號(hào): HY-P1446
Cholera toxin 是由霍亂弧菌產(chǎn)生的多功能蛋白質(zhì)。Cholera toxin 不僅僅是引起霍亂的另一種腸毒素,而且還能以多種方式影響免疫系統(tǒng)。
MCE 的所有產(chǎn)品僅用作科學(xué)研究,我們不為任何個(gè)人用途提供產(chǎn)品和服務(wù)
Description | Cholera toxin is a multifunctional protein produced by Vibrio cholera. Cholera toxin is not just another enterotoxin that causes cholera but also able to influence the immune system in many ways. |
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Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
References |
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CAS No. | 9012-63-9 |
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SMILES | [Cholera toxin] |
Shipping | Room temperature in continental US; may vary elsewhere |
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