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Alternative RNA Splicing

Alternative RNA Splicing

Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...

Alternative RNA Splicing

Alternative RNA Splicing

RNA Splicing

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...

RNA Splicing

RNA Splicing

Pre-mRNA Processing: RNA Splicing

Pre-mRNA Processing: RNA Splicing

Pre-mRNA Processing

Pre-mRNA Processing

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Related Experiment Video

Updated: Apr 19, 2026

Using the E1A Minigene Tool to Study mRNA Splicing Changes

Using the E1A Minigene Tool to Study mRNA Splicing Changes

Published on: April 22, 2021

Tools and tactics for studying alternative splicing.

Rui Sousa-Luís¹, Maria Carmo-Fonseca^2,3

¹Gulbenkian Institute for Molecular Medicine, Avenida Professor Egas Moniz, Lisbon, Portugal.

Nature Reviews. Genetics

|April 17, 2026

Summary

This summary is machine-generated.

Alternative splicing creates essential transcript diversity, but its errors cause disease. New technologies like long-read sequencing and CRISPR now allow detailed study and potential therapies for splicing-related disorders.

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Identification of Alternative Splicing and Polyadenylation in RNA-seq Data

Identification of Alternative Splicing and Polyadenylation in RNA-seq Data

Published on: June 24, 2021

Area of Science:

Molecular Biology
Genomics
Bioinformatics

Background:

Alternative splicing generates crucial transcriptomic diversity for cellular functions.
Dysregulation of alternative splicing is implicated in various diseases, including cancer and genetic disorders.
Historically, technical limitations hindered comprehensive analysis of alternative splicing.

Purpose of the Study:

To highlight recent technological advancements transforming the study of alternative splicing.
To discuss the implications of these advances for understanding splicing regulation and disease.
To explore the potential for developing new diagnostic and therapeutic strategies based on splicing profiles.

Main Methods:

Long-read sequencing for isoform-resolved transcriptomic analysis (bulk, single-cell, spatial).
CRISPR-based assays for direct functional testing of splicing isoforms.
Population genetics studies to link genetic variation with splicing and disease risk.
Deep learning models for deciphering splicing regulatory mechanisms.

Main Results:

Recent technological breakthroughs overcome previous limitations in mapping and interpreting alternative splicing.
New methods enable high-resolution analysis of splicing at multiple biological scales.
Advances facilitate direct functional validation of splicing isoforms and their disease relevance.
Computational approaches are beginning to decode the complex language of splicing regulation.

Conclusions:

The convergence of advanced sequencing, gene editing, population studies, and AI is revolutionizing alternative splicing research.
These developments promise deeper insights into fundamental splicing regulation.
The findings pave the way for personalized diagnostic and therapeutic strategies targeting individual splicing profiles.