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Updated: Jul 13, 2025

Author Spotlight: Exploring the Frontier of mRNA Research with Poly A Tail Analysis Techniques
Published on: January 12, 2024
Nano3'RACE: A Method to Analyze Poly(A) Tail Length and Nucleotide Additions at the 3' Extremity of Selected mRNAs
Pietro Giraudo1, Quentin Simonnot1, David Pflieger1
1Institut de biologie moléculaire des plantes, CNRS, Université de Strasbourg, Strasbourg, France.
Abstract:
Deadenylation is a major process that regulates gene expression by shaping the length of mRNA poly(A) tails. Deadenylation is controlled by factors in trans that recruit or impede deadenylases, by the incorporation of non-adenosines during poly(A) tail synthesis, and by the posttranscriptional addition of 3' nucleotides to poly(A) tails. Deciphering the regulation of poly(A) tail shortening requires both transcriptome-wide approaches and more targeted methodologies, allowing deep analyses of specific mRNAs. In this chapter, we present Nano3'RACE, a nanopore-based cDNA sequencing method that allows in-depth analysis to precisely measure poly(A) tail length and detect 3' terminal nucleotide addition, such as uridylation, for mRNAs of interest.
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