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Western Blot|實驗技術(shù)服務(wù)

時間:2015/7/1閱讀:263
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關(guān)鍵詞:Western Blot|實驗技術(shù)服務(wù)
簡介:世界*品牌Western Blot|實驗技術(shù)服務(wù)原裝,,質(zhì)量保證,*,。
Western Blot|實驗技術(shù)服務(wù)——pCzn1質(zhì)粒+Arctic Express宿主菌低溫表達(dá)體系,。
我們具備豐富的蛋白表達(dá)設(shè)計經(jīng)驗及實驗操作技巧,,承諾客戶不成功不收費,。在獲得重組蛋白產(chǎn)品的同時,我們也會提供相應(yīng)的原始數(shù)據(jù)和原始圖片,不需要再額外花費精力重復(fù)實驗,。另一方面,,我們所有的實驗數(shù)據(jù)真實可信,我們提供原始的表達(dá)菌株和克隆質(zhì)粒,,客戶可以依據(jù)我們的實驗報告重復(fù)我們的實驗結(jié)果,。
產(chǎn)品品牌:   http://www.。,。com/goodsid/fenleiyi/2868603/1.html    
測序?qū)嶒灹鞒蹋?br>1. 組織塊稱重 
2. 利用液氮,、研缽粉碎組織塊 
3. 加入RIPA緩沖液(每克組織3 ml RIPA),PMSF(每克組織30μl,,10 mg/ml PMSF),,利用Polytron進一步勻漿(15,000轉(zhuǎn)/分*1分鐘)維持4℃ 
4. 加入PMSF(每克組織30μl,10 mg/ml PMSF),,冰上孵育30分鐘 
5. 移入離心管4℃ 約20,000 g(約15,000轉(zhuǎn))15分鐘 
6. 上清液為細(xì)胞裂解液可分裝-20℃保存 
7. 進行Bradford比色法測定蛋白質(zhì)濃度 
8. 取相同質(zhì)量的細(xì)胞裂解液(體積*蛋白質(zhì)濃度),,并加等體積的2×電泳加樣緩沖液 
9. 沸水浴中3分鐘 
10. 上樣 
11. 電泳(濃縮膠20mA,分離膠35mA) 
12. 電轉(zhuǎn)膜儀轉(zhuǎn)膜(100mA 40分鐘) 
13. 膜用麗春紅染色,,膠用考馬斯亮藍(lán)染色 
14. Westernblot 試劑盒顯色 
15. 分析比較記錄 
western blot的實驗步驟及注意事項的資料 
1. 把聚丙烯酰胺凝膠中的蛋白質(zhì)電泳轉(zhuǎn)移到硝酸纖維膜上,。 
1)轉(zhuǎn)移緩沖液洗滌凝膠和硝酸纖維素膜,將硝酸纖維素膜鋪在凝膠上,,用5ml移液管在凝膠上來回滾動去除所有的氣泡,。 
2)在凝膠/濾膜外再包一張3mm濾紙(預(yù)先用轉(zhuǎn)移緩沖液浸濕),將凝膠夾在中間,,保持濕潤和沒有氣泡,。 
3)將此濾紙/凝膠/薄膜濾紙按照廠家建議方法放入電泳裝置中,凝膠面向陰極,。 
4)將上述裝置放入緩沖液槽中,,并灌滿轉(zhuǎn)移緩沖液以淹沒凝膠。 
5)按照廠家所示接通電源開始電泳轉(zhuǎn)移,。 
6)轉(zhuǎn)移結(jié)束后,,取出薄膜和凝膠,棄去凝膠,。 
2. 將薄膜漂在氨基黑中快速染色,,直至分子量標(biāo)準(zhǔn)顯現(xiàn)時取出,記錄下標(biāo)準(zhǔn)位置,。 
3. 用100ml水洗滌纖維素膜,,必要時可用脫色緩沖液。 
4. 膜置印跡緩沖液中于37℃保溫1小時,。 
5. 室溫下,,用PBS-Tween緩沖液洗滌薄膜。 
6. 用封口機將薄膜封入塑料袋中,,盡可能不留空氣,。 
7.袋的一角剪一緩沖液的小口,用透析袋夾緊,。 
8.混合:NGS(100微升),,印跡緩沖液中的抗體(10毫升),加在裝薄膜的袋中,,于室溫下?lián)u動2小時(或4℃) 
9.用總體積300ml PBS-Tween緩沖液,,分4次在一淺盤中洗滌薄膜,每次75ml,。 
10. 將連接生物素的羊抗兔IgG(40微升溶于10毫升印跡緩沖液/100微升 NGS)加在袋內(nèi),,于室溫下?lián)u動1小時。 
11. 按步驟9洗滌,。 
12. 加入抗生素蛋白-HRP(40微升溶于10毫升印跡緩沖液/100微升 NGS),,于室溫下?lián)u動。 
注意事項: 
western blot中轉(zhuǎn)移在膜上的蛋白處于變性狀態(tài),,空間結(jié)構(gòu)改變,,因此那些識別空間表位的抗體不能用于western blot檢測。這種情況可以將表達(dá)目的蛋白的細(xì)胞或細(xì)胞裂解液中的所有蛋白物素化,再用酶標(biāo)記親和素進行western blot,。實驗中取膠和膜需帶手套,。 

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