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guangmingzhizi鐵蟲 (初入文壇)
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[交流]
關(guān)于Dig RNA 探針標(biāo)記的問題 已有1人參與
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有做 Dig RNA labeling 的嗎?roche 的kit. DIG RNA Labeling Kit (SP6/T7) RNA labeling with digoxigenin-UTP by in vitro transcription with SP6 and T7 RNA polymerase 說明書里: Sample Preparation • Linearize the DNA template by cutting at a restriction enzyme site downstream from the cloned insert. • To avoid transcription of undesirable sequences, use a restriction enzyme that creates 5´ overhangs. 對于內(nèi)切酶的如何選擇,這里強調(diào)是要5'突出,我無法理解,請大家給解答下好嗎?不勝感激。 此外,標(biāo)記的RNA探針,說明書里: The RNA transcripts can be analyzed by agarose gel electrophoresis (e.g., formaldehyde gels or native gels) and ethidium bromide staining. RNA,單鏈,在我的印象中是不能被EB很好的染色,但文獻(xiàn)中,有圖有真相。容不得我有絲毫懷疑,這一點,也請大家給解答下。再次感謝。 |

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