Exploring the epitranscriptome by native RNA sequencing

Begik, Oguzhan; Mattick, John S.; Novoa, Eva Maria

doi:http://dx.doi.org/10.1261/rna.079404.122

Exploring the epitranscriptome by native RNA sequencing

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Begik O, Mattick JS, Novoa EM. Exploring the epitranscriptome by native RNA sequencing. RNA. 2022 Nov;28(11):1430-9. DOI: 10.1261/rna.079404.122

Abstract

Chemical RNA modifications, collectively referred to as the "epitranscriptome," are essential players in fine-tuning gene expression. Our ability to analyze RNA modifications has improved rapidly in recent years, largely due to the advent of high-throughput sequencing methodologies, which typically consist of coupling modification-specific reagents, such as antibodies or enzymes, to next-generation sequencing. Recently, it also became possible to map RNA modifications directly by sequencing native RNAs using nanopore technologies, which has been applied for the detection of a number of RNA modifications, such as N6-methyladenosine (m6A), pseudouridine (Ψ), and inosine (I). However, the signal modulations caused by most RNA modifications are yet to be determined. A global effort is needed to determine the signatures of the full range of RNA modifications to avoid the technical biases that have so far limited our understanding of the epitranscriptome.