[求救] PCR的band神奇地消失了
小弟正在利用PCR和Rsa I digestion的方式進行db/db mice的genotyping,
以下為primer與PCR條件
Rsa I-F (5’-AGAACGGACACTCTTTGAAGTCTC-3’)
Rsa I-R (5’-CATTCAAACCATAGTTTAGGTTTGTGT-3’).
94℃for 1 min,
55℃for 1 min,
72℃for 1 min for 40 cycles.
一開始兩個月都沒問題,但卻突然在兩個星期前開始P不出任何band了,
primer重訂、polymerase重買,同樣的PCR reaction在另一組lepr全長的primers做為con
trol
有p出正確的band但利用新訂的Rsa I primer卻p不出任何band,
想請問版大門是否有逾過相同的問題,或是有什麼提議能解決這個問題?
感謝大家。
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狠多東西需要證明的原因..
不是因為被相信..而是因為被懷疑..
如果你深信不疑..那又何必去證明呢??
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※ 編輯: ccjwo (114.137.92.7), 09/25/2017 14:57:17
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