Novel intron-containing luciferase genes for quantitative analysis of mRNA levels in transient gene expression assays

DOI NDLデジタルコレクション Web Site 被引用文献1件 参考文献8件 オープンアクセス
  • Hayakawa Hideto
    Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo
  • Ogura Rieko
    Venture Business Laboratory, Yokohama National University
  • Hiratsuka Kazuyuki
    Graduate School of Environment and Information Sciences, Yokohama National University
  • Suzuki Masashi
    Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo
  • Ugaki Masashi
    Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo

書誌事項

公開日
2012
DOI
  • 10.5511/plantbiotechnology.12.0823a
公開者
日本植物バイオテクノロジー学会

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説明

Firefly luciferase (Fluc) is commonly used as a sensitive reporter for transient gene expression assays in plants. Although the protein level of Fluc can easily be quantified, it is difficult to quantify the mature mRNA level of the reporter gene in these assays. The mRNA level can be measured using quantitative reverse-transcription PCR (qRT-PCR), but the reaction often amplifies both the target mature mRNA and contaminating DNA or unspliced pre-mRNA, thus providing inaccurate results. To address this problem, we constructed a series of novel Fluc genes containing intronic sequences measuring 315 bp or longer. Here, we show that the contaminating DNA and unspliced mRNA were not PCR-amplified due to presence of these introns. Moreover, the intron-containing Fluc gene conferred superior Fluc activity to the original intron-less Fluc gene. We propose that the novel Fluc genes reported here can be used to quantitate both protein and functional mRNA levels in transient gene expression assays in plants.

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