Abstract:
:Transcriptomic genome-wide analyses demonstrate massive variation of alternative splicing in many physiological and pathological situations. One major challenge is now to establish the biological contribution of alternative splicing variation in physiological- or pathological-associated cellular phenotypes. Toward this end, we developed a computational approach, named "Exon Ontology," based on terms corresponding to well-characterized protein features organized in an ontology tree. Exon Ontology is conceptually similar to Gene Ontology-based approaches but focuses on exon-encoded protein features instead of gene level functional annotations. Exon Ontology describes the protein features encoded by a selected list of exons and looks for potential Exon Ontology term enrichment. By applying this strategy to exons that are differentially spliced between epithelial and mesenchymal cells and after extensive experimental validation, we demonstrate that Exon Ontology provides support to discover specific protein features regulated by alternative splicing. We also show that Exon Ontology helps to unravel biological processes that depend on suites of coregulated alternative exons, as we uncovered a role of epithelial cell-enriched splicing factors in the AKT signaling pathway and of mesenchymal cell-enriched splicing factors in driving splicing events impacting on autophagy. Freely available on the web, Exon Ontology is the first computational resource that allows getting a quick insight into the protein features encoded by alternative exons and investigating whether coregulated exons contain the same biological information.
journal_name
Genome Resjournal_title
Genome researchauthors
Tranchevent LC,Aubé F,Dulaurier L,Benoit-Pilven C,Rey A,Poret A,Chautard E,Mortada H,Desmet FO,Chakrama FZ,Moreno-Garcia MA,Goillot E,Janczarski S,Mortreux F,Bourgeois CF,Auboeuf Ddoi
10.1101/gr.212696.116subject
Has Abstractpub_date
2017-06-01 00:00:00pages
1087-1097issue
6eissn
1088-9051issn
1549-5469pii
gr.212696.116journal_volume
27pub_type
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