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Circular RNAs are found in a wide range of organisms and it has been proposed that they perform disparate functions. However, how RNA circularization is connected to alternative splicing remains largely unexplored. Here, we stimulated primary human endothelial cells with tumor necrosis factor α or tumor growth factor β, purified RNA, generated >2.4 billion RNA-seq reads, and used a custom pipeline to characterize circular RNAs derived from coding exons. We find that circularization of exons is widespread and correlates with exon skipping, a feature that adds considerably to the regulatory complexity of the human transcriptome.

Original publication

DOI

10.1016/j.jmb.2015.02.018

Type

Journal article

Journal

J Mol Biol

Publication Date

31/07/2015

Volume

427

Pages

2414 - 2417

Keywords

alternative splicing, circRNA, cotranscriptional, turnover, Alternative Splicing, Cells, Cultured, Exons, Human Umbilical Vein Endothelial Cells, Humans, RNA, RNA Splicing, Transforming Growth Factor beta, Tumor Necrosis Factor-alpha