منابع مشابه
The “Alternative” Choice of Constitutive Exons throughout Evolution
Alternative cassette exons are known to originate from two processes-exonization of intronic sequences and exon shuffling. Herein, we suggest an additional mechanism by which constitutively spliced exons become alternative cassette exons during evolution. We compiled a dataset of orthologous exons from human and mouse that are constitutively spliced in one species but alternatively spliced in t...
متن کاملThe Emergence of Alternative 3′ and 5′ Splice Site Exons from Constitutive Exons
Alternative 3' and 5' splice site (ss) events constitute a significant part of all alternative splicing events. These events were also found to be related to several aberrant splicing diseases. However, only few of the characteristics that distinguish these events from alternative cassette exons are known currently. In this study, we compared the characteristics of constitutive exons, alternati...
متن کاملGenomic Organization and Evolution of Alternative Exons
The genomic organization of a gene coding for an a1 subunit of a voltage-gated calcium channel of Drosophila melanogaster (DmcaIA) was determined. Thirty-four exons, distributed over 45 kb of genomic sequence, have been identified and mapped, including exons in three regions involved in alternative splicing and new sites potentially involved in RNA editing. The comparison of the intron/exon bou...
متن کاملComparative Analysis and Classification of Cassette Exons and Constitutive Exons
Alternative splicing (AS) is a major engine that drives proteome diversity in mammalian genomes and is a widespread cause of human hereditary diseases. More than 95% of genes in the human genome are alternatively spliced, and the most common type of AS is the cassette exon. Recent discoveries have demonstrated that the cassette exon plays an important role in genetic diseases. To discover the f...
متن کاملChanges in alternative splicing of human and mouse genes are accompanied by faster evolution of constitutive exons.
Alternative splicing is known to be an important source of protein sequence variation, but its evolutionary impact has not been explored in detail. Studying alternative splicing requires extensive sampling of the transcriptome, but new data sets based on expressed sequence tags aligned to chromosomes make it possible to study alternative splicing on a genome-wide scale. Although genes showing a...
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ژورنال
عنوان ژورنال: PLoS Genetics
سال: 2007
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.0030203