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Related Experiment Videos

5' end cDNA amplification using classic RACE.

Elizabeth Scotto-Lavino1, Guangwei Du, Michael A Frohman

  • 1Graduate Program in Molecular & Cellular Pharmacology, Stony Brook University, Stony Brook, New York 11794, USA.

Nature Protocols
|April 5, 2007
PubMed
Summary

Rapid amplification of cDNA ends (RACE) PCR precisely identifies transcription start sites and enhancer elements. This method quickly amplifies full-length cDNAs, aiding gene discovery and analysis.

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Area of Science:

  • Molecular Biology
  • Genomics

Background:

  • Precise determination of transcript 5' ends is crucial for identifying transcription initiation sites and cis-acting regulatory elements.
  • Rapid amplification of cDNA ends (RACE) PCR is a valuable technique for characterizing mRNA.
  • Understanding alternative 5' and 3' gene ends is important for comprehensive gene analysis.

Purpose of the Study:

  • To describe a classical scheme for 5' RACE PCR.
  • To highlight the utility of RACE PCR in obtaining full-length cDNAs and identifying alternative transcript ends.
  • To present a simple and efficient method for 5' end determination.

Main Methods:

  • Utilizes PCR to amplify regions between known cDNA sequences and non-specific tags.
  • Applies RACE PCR to complex mixtures of cellular mRNA.
  • Involves generating an artificial tag at the 5' end of cDNA, as the natural poly(A) tail is absent.

Main Results:

  • The described 5' RACE method is effective for precise determination of transcript 5' ends.
  • The technique facilitates the rapid acquisition of full-length cDNAs.
  • It aids in the identification of alternative transcription start sites.

Conclusions:

  • The classical 5' RACE PCR scheme is a straightforward and effective method.
  • This technique is suitable for various applications requiring precise 5' end determination.
  • The method can be completed within 1-3 days, offering efficiency in molecular biology research.

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