New study suggests researchers may be discarding important RNA information

Traditional RNA isolations kits and techniques usually isolate linear RNA transcripts while discarding circular material that are thought to be unimportant. However, a new study at the Stanford School of Medicine suggests that circular RNA may play a more important role in gene expression than previously thought.

In the classical model of gene expression, the genetic script encoded in our genomes is expressed in each cell in the form of RNA molecules, each consisting of a linear string of chemical “bases”. It may be time to revise this traditional understanding of human gene expression, as new research suggests that circular RNA molecules, rather than the classical linear molecules, are a widespread feature of the gene expression program in every human cell. The results are published in the Feb. 1 issue of the online journal PLoS ONE.

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