Apr 22, 2016

The discovery potential of RNA processing profiles

BioRxiv : the Preprint Server for Biology
Amadís PagèsEduardo Eyras


Small non-coding RNAs are highly abundant molecules that regulate essential cellular processes and are classified according to sequence and structure. Here we argue that read profiles from size-selected RNA sequencing capture the post-transcriptional processing specific to each RNA family, thereby providing functional information independently of sequence and structure. We developed SeRPeNT, the first unsupervised computational method that exploits reproducibility across replicates and uses dynamic time-warping and density-based clustering algorithms to identify, characterize and compare small non-coding RNAs (sncRNAs) by harnessing the power of read profiles. We applied SeRPeNT to: a) generate an extended human annotation with 671 new sncRNAs from known classes and 131 from new potential classes, b) show pervasive differential processing between cell compartments and c) predict new molecules with miRNA-like behaviour from snoRNA, tRNA and long non-coding RNA precursors, potentially dependent on the miRNA biogenesis pathway. Furthermore, we validated experimentally four predicted novel non-coding RNAs: a miRNA, a snoRNA-derived miRNA, a processed tRNA and a new uncharacterized sncRNA. SeRPeNT facilitates fast and accurate disco...Continue Reading

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Mentioned in this Paper

Biochemical Pathway
Cellular Process
RNA, Untranslated
Regulation of Biological Process
Sequence Determinations, RNA
MT-TA gene
Transcription, Genetic
Triplet Codon-amino Acid Adaptor Activity
Transfer RNA
Compartment of Cell

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