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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

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...

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

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...

Exon Recombination

Exon Recombination

The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon has three reading...

Cis-regulatory Sequences

Cis-regulatory Sequences

Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...

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Related Experiment Video

Updated: May 29, 2026

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition

Published on: October 9, 2014

Regulated functional alternative splicing in Drosophila.

Julian P Venables¹, Jamal Tazi, François Juge

¹Université Montpellier 2, UMR 5535, Institut de Génétique Moléculaire de Montpellier, CNRS, 1919 Route de Mende, 34293 Montpellier cedex 05, France.

Nucleic Acids Research

|September 13, 2011

Summary

Alternative splicing in fruit flies (Drosophila melanogaster) generates diverse protein forms crucial for development. New transcriptome data offers a comprehensive view of this essential gene regulation process.

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Last Updated: May 29, 2026

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition

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Published on: October 9, 2014

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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
Genetics
Developmental Biology

Background:

Alternative splicing significantly expands the coding potential of metazoan genes.
Studies in Drosophila melanogaster have been pivotal in understanding regulated alternative splicing.
This process generates tissue- and stage-specific protein isoforms with distinct functions.

Purpose of the Study:

To explore the role and diversity of alternative splicing in Drosophila.
To leverage extensive transcriptome sequencing data for a comprehensive analysis.
To understand the functional implications of alternatively spliced gene products.

Main Methods:

Analysis of large-scale transcriptome sequencing data from Drosophila.
Investigating gene regulation mechanisms related to alternative splicing.
Characterizing the diversity and cellular functions of protein isoforms.

Main Results:

Alternative splicing is highly prevalent in germ cells, muscle, and the central nervous system.
It modulates the expression of key proteins, including cell-surface molecules and transcription factors.
Drosophila studies have provided deep insights into the regulation and functional outcomes of alternative splicing.

Conclusions:

Alternative splicing is a fundamental mechanism for generating functional diversity in metazoan genomes.
Drosophila serves as a powerful model for dissecting alternative splicing.
Current data offers a unique opportunity to comprehensively map and understand alternative splicing.