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Updated: May 17, 2026

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Identification of Alternative Splicing and Polyadenylation in RNA-seq Data
Published on: June 24, 2021
HEXEvent: a database of Human EXon splicing Events
1Department of Microbiology and Molecular Genetics, University of California, Irvine, CA 92697-4025, USA.
Nucleic Acids Research
|November 3, 2012
Summary
HEXEvent is a new database for compiling human exon data, focusing on alternative splicing events. It allows users to customize queries and download datasets for further analysis of exon splicing.
Area of Science:
- Genomics
- Molecular Biology
- Bioinformatics
Background:
- Alternative splicing is a key mechanism regulating gene expression in humans.
- Understanding exon splicing patterns is crucial for deciphering cellular function and disease.
- Existing databases may lack comprehensive features for analyzing genome-wide splicing events.
Purpose of the Study:
- To introduce HEXEvent, a novel database for exploring human internal exon splicing.
- To provide customizable query options for analyzing alternative splicing events.
- To facilitate the extraction and download of exon splicing datasets for research.
Main Methods:
- Development of the HEXEvent database (http://hexevent.mmg.uci.edu).
- Implementation of user-defined queries based on splicing event type and frequency.
- Inclusion of EST counts to quantify splicing event frequency.
- User-definable parameters for constitutive and alternatively spliced exons.
Main Results:
- HEXEvent enables the compilation of genome-wide exon data sets for human internal exons.
- Users can specify criteria for exon inclusion/exclusion levels.
- The database provides downloadable datasets for individual, multiple, or genome-wide exons.
- EST counts offer quantitative insights into splicing event frequencies.
Conclusions:
- HEXEvent offers a unique and flexible platform for analyzing human alternative splicing.
- The database empowers researchers to extract and analyze custom splicing datasets.
- HEXEvent enhances the study of exon splicing patterns and their functional implications.
Related Concept Videos
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...
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 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...
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
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
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...
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...
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...
Exon shuffling follows “splice frame rules.” Each exon has three reading...
