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Updated: Aug 5, 2025

Using the E1A Minigene Tool to Study mRNA Splicing Changes
Published on: April 22, 2021
Regulation of Pre-mRNA Splicing: Indispensable Role of Post-Translational Modifications of Splicing Factors
Miroslava Kretova1, Tomas Selicky1, Ingrid Cipakova1
1Department of Genetics, Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia.
Abstract:
Pre-mRNA splicing is a process used by eukaryotic cells to generate messenger RNAs that can be translated into proteins. During splicing, the non-coding regions of the RNAs (introns) are removed from pre-mRNAs and the coding regions (exons) are joined together, resulting in mature mRNAs. The particular steps of splicing are executed by the multimegadalton complex called a spliceosome. This complex is composed of small nuclear ribonucleoproteins, various splicing factors, and other regulatory and auxiliary proteins. In recent years, various post-translational modifications of splicing factors have been shown to contribute significantly to regulation of processes involved in pre-mRNA splicing. In this review, we provide an overview of the most important post-translational modifications of splicing factors that are indispensable for their normal function during pre-mRNA splicing (i.e., phosphorylation, acetylation, methylation, ubiquitination and sumoylation). Moreover, we also discuss how the defects in regulation of splicing factors are related to the development of cancer.
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