[求救] 限制酶切不了
這是我所設計的primer
F-primer
5'GCGGCCGCATGTGTCGGTACTTGAAG3'
R-primer
5'GGATCCTTATCTTGGATGAGCGAC3'
使用的是NotI和BamHI
在重組的部分,已經有成功接上T vector,也送到DH5a裡面,經過PCR確認後也有目標基因
。但是之後想切下目標基因後,發現完全切不下來。
這是我用的條件
50uL plasmid +各1uL enzyme +2uL 3.1buffer 放4小時
50uL plasmid +各2uL enzyme +5uL 3.1buffer 放8小時
皆在37度
試過後發現都無法切下。
查過資料後,在想說會不會是DH5a跟NotI有甲基化的關係!?!?!也只是猜想而已。
請問各位,可以問問是我哪邊出問題嗎?
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