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Related Concept Videos

Alternative RNA Splicing02:18

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 Splicing02:18

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 Splicing01:32

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 Splicing01:32

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 Recombination02:32

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...
Pre-mRNA Processing: RNA Splicing01:32

Pre-mRNA Processing: 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...

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Related Experiment Video

Updated: Jun 25, 2026

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition
11:48

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition

Published on: October 9, 2014

Tropomyosin exons as models for alternative splicing.

Clare Gooding1, Christopher W J Smith

  • 1Department of Biochemistry, University of Cambridge, CB2 1GA, UK.

Advances in Experimental Medicine and Biology
|February 13, 2009
PubMed
Summary

Mammalian tropomyosin genes utilize alternative splicing for protein diversity, primarily through mutually exclusive exon selection. Studying TPM1 and TPM2 provides key insights into muscle-specific splicing regulation mechanisms.

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Dissection of Drosophila melanogaster Flight Muscles for Omics Approaches

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Three of four mammalian tropomyosin (Tm) genes undergo alternative splicing.
  • Mutually exclusive exon selection is a common splicing strategy.
  • Tm isoforms play crucial roles in muscle function.

Purpose of the Study:

  • To analyze alternative splicing events in TPM1, TPM2, and TPM3 genes.
  • To investigate muscle-specific alternative splicing mechanisms.
  • To gain insights into splicing regulation strategies.

Main Methods:

  • Experimental analysis of alternative splicing in TPM genes.
  • Focus on mutually exclusive exon pairs in TPM1 (alphaTm) and TPM2 (betaTm).
  • Utilizing established model systems for muscle-specific splicing.

Main Results:

  • Alternative splicing is prevalent in mammalian tropomyosin genes.
  • TPM1 and TPM2 serve as key models for striated and smooth muscle splicing, respectively.
  • Analysis yielded significant understanding of splicing regulation.

Conclusions:

  • Alternative splicing of tropomyosin genes generates protein diversity.
  • Studied model systems offer valuable insights into general splicing regulation.
  • Understanding these mechanisms is crucial for muscle biology.