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Related Experiment Videos

3' 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

Obtaining the full 3' cDNA sequence is crucial for understanding mRNA regulation. Rapid amplification of cDNA ends (RACE) PCR, specifically 3' RACE, efficiently amplifies unknown terminal regions using the poly(A) tail.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Gene Expression Analysis

Background:

  • The 3' untranslated region (UTR) of mRNA contains regulatory elements influencing stability and localization.
  • Alternative polyadenylation sites can modify mRNA properties and encoded proteins.
  • Full-length cDNA sequencing is essential for comprehensive gene analysis.

Purpose of the Study:

  • To describe a method for obtaining full-length cDNA sequences.
  • To highlight the importance of the 3' terminal sequence of cDNA.
  • To enable the amplification of unknown regions in cDNA.

Main Methods:

  • Utilizing rapid amplification of cDNA ends (RACE) PCR.
  • Employing 3' RACE to amplify the terminal 3' sequence of cDNA.

Related Experiment Videos

  • Leveraging the poly(A) tail as a non-specific tag for amplification.

    • Main Results:

    • Successful amplification of the entire 3' sequence of cDNA is achievable.
    • The protocol allows for the characterization of regulatory signals within the 3' UTR.
    • The method can be applied to complex mRNA mixtures.

    Conclusions:

    • Full-length cDNA sequencing provides critical insights into mRNA regulation.
    • 3' RACE is an efficient technique for determining complete cDNA sequences.
    • This method facilitates the study of alternative polyadenylation and its consequences.