Journal
MOLECULAR AND CELLULAR BIOCHEMISTRY
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s11010-023-04730-2
Keywords
miRNA; Novel; Neurodevelopment; snoRNA; Y-RNA
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Recent advances in small RNA-seq technology and bioinformatics pipelines have allowed for the discovery of novel miRNAs in the E15.5 mouse brain. A high-quality small RNA-seq dataset was used to identify 50 putative novel miRNAs, with 6 of them further validated. Conservation analysis and target functional prediction were used to determine the authenticity of these novel miRNA candidates.
Many advances in small RNA-seq technology and bioinformatics pipelines have been made recently, permitting the discovery of novel miRNAs in the embryonic day 15.5 (E15.5) mouse brain. We aimed to improve miRNA discovery in this tissue to expand our knowledge of the regulatory networks that underpin normal neurodevelopment, find new candidates for neurodevelopmental disorder aetiology, and deepen our understanding of non-coding RNA evolution. A high-quality small RNA-seq dataset of 458 M reads was generated. An unbiased miRNA discovery pipeline identified fifty putative novel miRNAs, six of which were selected for further validation. A combination of conservation analysis and target functional prediction was used to determine the authenticity of novel miRNA candidates. These findings demonstrate that miRNAs remain to be discovered, particularly if they have the features of other small RNA species.
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