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Circular RNAs Are the Predominant Transcript Isoform from Hundreds of Human Genes in Diverse Cell Types PLOS ONE Salzman, J., Gawad, C., Wang, P. L., Lacayo, N., Brown, P. O. 2012; 7 (2)

Abstract

Most human pre-mRNAs are spliced into linear molecules that retain the exon order defined by the genomic sequence. By deep sequencing of RNA from a variety of normal and malignant human cells, we found RNA transcripts from many human genes in which the exons were arranged in a non-canonical order. Statistical estimates and biochemical assays provided strong evidence that a substantial fraction of the spliced transcripts from hundreds of genes are circular RNAs. Our results suggest that a non-canonical mode of RNA splicing, resulting in a circular RNA isoform, is a general feature of the gene expression program in human cells.

View details for DOI 10.1371/journal.pone.0030733

View details for Web of Science ID 000301977500016

View details for PubMedID 22319583

View details for PubMedCentralID PMC3270023