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Related Concept Videos

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...
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...
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...
Chromatin Structure and RNA Splicing02:41

Chromatin Structure and RNA Splicing

In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...

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Related Experiment Video

Updated: May 11, 2026

A Reporter Based Cellular Assay for Monitoring Splicing Efficiency
08:53

A Reporter Based Cellular Assay for Monitoring Splicing Efficiency

Published on: September 15, 2021

Counting on co-transcriptional splicing.

Mattia Brugiolo1, Lydia Herzel1, Karla M Neugebauer1

  • 1Max Planck Institute of Molecular and Cellular Biology and GeneticsPfotenhauerstrasse 108, 01309 DresdenGermany.

F1000Prime Reports
|May 3, 2013
PubMed
Summary

The majority of RNA splicing occurs during transcription (co-transcriptional splicing) across four organisms. This finding is consistent despite varied experimental methods and bioinformatic analyses.

Area of Science:

  • Molecular Biology
  • Genetics
  • Bioinformatics

Background:

  • Splicing removes introns from pre-mRNA via the spliceosome.
  • Pre-mRNA can be spliced co-transcriptionally or post-transcriptionally.
  • Early studies focused on limited gene sets, potentially biasing results.

Purpose of the Study:

  • To review global datasets quantifying co-transcriptional intron removal.
  • To assess the prevalence of co-transcriptional splicing across different organisms.
  • To discuss the impact of experimental and analytical approaches on findings.

Main Methods:

  • Analysis of global datasets from eight studies since 2010.
  • Bioinformatic analysis of gene expression data.
  • Comparative assessment across model organisms (yeast, insects, mammalian cells).

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ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast
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ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast

Published on: June 30, 2022

Using the E1A Minigene Tool to Study mRNA Splicing Changes
10:25

Using the E1A Minigene Tool to Study mRNA Splicing Changes

Published on: April 22, 2021

Related Experiment Videos

Last Updated: May 11, 2026

A Reporter Based Cellular Assay for Monitoring Splicing Efficiency
08:53

A Reporter Based Cellular Assay for Monitoring Splicing Efficiency

Published on: September 15, 2021

ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast
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ACT1-CUP1 Assays Determine the Substrate-Specific Sensitivities of Spliceosomal Mutants in Budding Yeast

Published on: June 30, 2022

Using the E1A Minigene Tool to Study mRNA Splicing Changes
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Using the E1A Minigene Tool to Study mRNA Splicing Changes

Published on: April 22, 2021

Main Results:

  • A consensus view indicates the majority of splicing events are co-transcriptional.
  • This prevalence is observed in most cells and tissues across four studied organisms.
  • Remarkable agreement on co-transcriptional splicing prevalence exists despite methodological differences.

Conclusions:

  • Co-transcriptional splicing is the predominant mode of intron removal.
  • Global datasets provide robust evidence for widespread co-transcriptional splicing.
  • Methodological variations did not significantly alter the consensus on splicing timing.