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Related Experiment Videos

Adapter-tagged competitive PCR (ATAC-PCR)--a high-throughput quantitative PCR method for microarray validation.

Sakae Saito1, Ryo Matoba, Kikuya Kato

  • 1Taisho Laboratory of Functional Genomics, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, 630-0101 Nara, Japan.

Methods (San Diego, Calif.)
|November 5, 2003
PubMed
Summary

Adapter-tagged competitive PCR (ATAC-PCR) precisely quantifies relative gene expression from small RNA samples. This advanced method enables accurate measurement of even twofold expression differences across numerous samples efficiently.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • Quantitative PCR (qPCR) is crucial for gene expression analysis.
  • Existing methods may have limitations in throughput and sensitivity for large-scale studies.
  • Accurate measurement of relative gene expression is vital for biological research.

Purpose of the Study:

  • To introduce and validate Adapter-tagged competitive PCR (ATAC-PCR) as an advanced method for gene expression analysis.
  • To demonstrate the capability of ATAC-PCR to accurately quantify relative expression ratios across multiple samples.
  • To highlight the sensitivity and efficiency of ATAC-PCR for detecting small gene expression changes.

Main Methods:

  • Adapter-tagged competitive PCR (ATAC-PCR) involves adding unique adapters to sample-derived cDNA.

Related Experiment Videos

  • Internal standards are included in the same reaction for calibration curve generation.
  • The technique utilizes competitive quantitative PCR principles for precise measurement.

    • Main Results:

    • ATAC-PCR accurately measures relative expression ratios of numerous samples simultaneously.
    • The method can detect gene expression differences as small as twofold.
    • High-throughput processing of over a thousand genes per day is achievable with a capillary DNA sequencer.

    Conclusions:

    • ATAC-PCR is a sensitive and accurate technique for quantifying relative gene expression.
    • This method is suitable for validating findings from techniques like cDNA microarrays and differential display.
    • ATAC-PCR offers a powerful tool for large-scale gene expression studies.