[求救] western小分子蛋白壓不到QQ
我的實驗蛋白分子量6 kDa,抗體可觀察到的分子量約15KDa
一抗建議濃度1:100-1:1000 二抗1:2000-1:10000 mouse anti-goat
實驗中: blocking 5% milk;
transfer是commerical buffer(無外加methanol)
70V 1hr
[第一次]一抗1:1000 (in 5% BSA) 二抗1:10000 (in 5% milk)
主要的band完全空白,雜band [gradient gel 2分鐘] http://ppt.cc/lLN;
[12% SDS gel 10 分鐘] http://ppt.cc/FZ1I
[老師建議]一抗1:100 (in 5% BSA) 二抗 1:10000 (in 5% milk)
用15% SDS gel跑了之後,(跑一半就收,所以沒有把小分子跑掉的疑慮)
結果不僅10分鐘的雜band很微弱,連我所要看的band都壓不到
因為抗體改成1:100,不知道是否是因為一抗太濃呢?
這個東西壓不出來,題目就做不下去了QQ 請達人幫幫我~
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◆ From: 125.224.237.33
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謝謝 cin: 因為我先做qPCR,再做western, 所以猜想qPCR可detect到22cycles
應該不會WB看不到.
transfer是溼式, SDS gel running到一半是怕小分子跑太快會先跳海
※ 編輯: spirithorse 來自: 125.224.237.33 (10/12 17:20)
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謝謝以上的建議! ^^*
※ 編輯: spirithorse 來自: 125.224.237.33 (10/12 20:53)
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