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zhinuo1001銀蟲 (小有名氣)
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[求助]
求解:qPCR & RT-qPCR 的區(qū)別
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近日 在看做熒光定量的相關(guān)文獻 遇到一個概念上的問題 求各位高人指點下啊 qPCR:the abbreviation for quantitative real-time PCR RT-qPCR: the abbreviation for reverse transcript-qPCR 可RT-qPCR這個跟qPCR有什么區(qū)別呢? qPCR這個是不是我們常說的RT-PCR? qPCR不是一樣要反轉(zhuǎn)才能做的嘛 還是直接用DNA模板做的? 還是RT-qPCR才是我們常說的RT-PCR? 看得我很懵啊 For HELP~~~ 先謝謝啦~~~ |
科研&生活。 | 生化與分子實驗技術(shù) |
榮譽版主 (知名作家)
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雖然Real-time PCR(實時熒光定量PCR)和Reverse transcription PCR(反轉(zhuǎn)錄PCR)看起來都可以縮寫為RT-PCR,但是,國際上的約定俗成的是:RT-PCR特指反轉(zhuǎn)錄PCR,而Real-time PCR一般縮寫為qPCR(quantitative real-time PCR)。 更正樓主的觀點:qPCR不一定與反轉(zhuǎn)錄相關(guān),除了可以用cDNA作為模板,也可以用基因組DNA等作為模板。而反轉(zhuǎn)錄PCR也不一定非要與熒光定量相關(guān),從mRNA中反轉(zhuǎn)錄得到cDNA,然后PCR擴增出目的基因,這也是反轉(zhuǎn)錄PCR。 綜上,那RT-qPCR(也有人寫成qRT-PCR)就很好理解了,就是結(jié)合了熒光定量技術(shù)的反轉(zhuǎn)錄PCR:先從RNA反轉(zhuǎn)錄得到cDNA(RT),然后用Real-time PCR進行定量分析(qPCR)。 有興趣的話可以看看維基百科:http://en.wikipedia.org/wiki/Rev ... rase_chain_reaction Reverse transcription polymerase chain reaction (RT-PCR) is a variant of polymerase chain reaction (PCR), a laboratory technique commonly used in molecular biology to generate many copies of a DNA sequence, a process termed "amplification". In RT-PCR, however, an RNA strand is first reverse transcribed into its DNA complement (complementary DNA, or cDNA) using the enzyme reverse transcriptase, and the resulting cDNA is amplified using traditional PCR or real-time PCR. Reverse transcription PCR is not to be confused with real-time polymerase chain reaction (Q-PCR/qRT-PCR), which is also sometimes abbreviated as RT-PCR. |
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銅蟲 (小有名氣)
銀蟲 (正式寫手)
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銀蟲 (小有名氣)
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