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Related Experiment Videos

Colorimetric method for detecting amplified nucleic acids

E Durward1, W J Harris

  • 1University of Aberdeen, Institute of Medical Sciences, Foresterhill, Scotland, UK.

Biotechniques
|October 30, 1998
PubMed
Summary
This summary is machine-generated.

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Detecting inorganic phosphate (Pi) by-products during PCR amplification offers a simple method for assessing nucleic acid amplification success. This approach provides sensitivity comparable to traditional staining methods.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Analytical Chemistry

Background:

  • Nucleic acid amplification, such as the polymerase chain reaction (PCR), is fundamental in molecular biology.
  • Accurate detection of amplification success is crucial for reliable experimental outcomes.
  • Existing methods for monitoring PCR success often require post-amplification analysis.

Purpose of the Study:

  • To develop a method for detecting and measuring the success of nucleic acid sequence amplifications.
  • To utilize the detection of amplification by-products, specifically inorganic phosphate (Pi), for real-time or endpoint assessment.
  • To optimize assay conditions to prevent non-specific hydrolysis of deoxynucleotide triphosphates (dNTPs).

Main Methods:

  • Implementing the detection of inorganic phosphate (Pi) during or upon completion of the polymerase chain reaction (PCR).

Related Experiment Videos

  • Modifying assay conditions to inhibit thermal- and template-independent enzymatic hydrolysis of dNTPs.
  • Employing the Fiske-SubbaRow method for inorganic phosphate (Pi) detection.

    • Main Results:

    • The inorganic phosphate (Pi) detection method demonstrates sensitivity comparable to ethidium bromide staining.
    • The Fiske-SubbaRow method allows for sensitive detection of Pi generated during PCR.
    • Assay modifications successfully prevented non-specific dNTP hydrolysis.

    Conclusions:

    • Detection of inorganic phosphate (Pi) is a viable and simple method for monitoring nucleic acid amplification success.
    • This method offers a rapid assay for amplified nucleic acids.
    • The Pi detection assay is useful when confirmation of the amplified DNA product is not strictly required.