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    請使用永久網址來引用或連結此文件: http://nccur.lib.nccu.edu.tw/handle/140.119/70095

    題名: Accurate quantitative RT-PCR for relative expression of Slo splice variants
    作者: 賴桂珍
    Sahar F. Mahmoud;Alex L. Bezzerides;Rebecca Riba;Lai,Guey-Jen;Peter V. Lovell;Yuko Hara;David P. McCobb
    貢獻者: 神科所
    關鍵詞: Competitive RT-PCR;Denaturing gel electrophoresis;SYBR Gold;Slo;Alternative splice variants
    日期: 2002.04
    上傳時間: 2014-09-23 12:26:50 (UTC+8)
    摘要: Much interest has been shown in the use of multi-template reverse transcription-polymerase chain reaction (RT-PCR) as a quantitative instrument for low-abundance mRNAs. A desire to achieve finely-graded quantification of the stress- and hormone-related regulation of one splicing decision in an ion channel gene motivated us to test the reliability of simultaneous amplification of two splice variants with one pair of flanking constitutive primers. Unexpectedly indiscriminate heteroduplexing between the two amplification products, despite a large length difference, and their tight comigration with one homoduplex, mandated a rigorously-denaturing electrophoresis protocol. Conveniently, a new fluorescent dye with high affinity for single-stranded DNA has become available. Though the dye has a good dynamic range, we found that dye and gel saturation compounded by the length difference between products introduced an asymmetrical error into the calculation of relative abundance. Avoiding several pitfalls, dye calibration could be used to correct the error. We also found that differences in the amplification efficiency of the two templates were not constant, but dependent on the initial template ratio, requiring a non-linear correction. Together these improvements gave us very consistent quantitative results, and thus advance our analysis of hormonal mechanisms underlying the regulation of alternative splicing of an ion channel critically involved in stress responses.
    關聯: Journal of Neuroscience Methods,115(2),189-198
    資料類型: article
    顯示於類別:[神經科學研究所 ] 期刊論文


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