During evolutionary progression of Alu-exons, repressive U-tracts buffer sudden gains in 3' splice site strength and prevent inclusion of cryptic exons.
Gabriela Santos-Rodriguez, Irina Voineagu, Robert J Weatheritt
An analysis of the genomic features that distinguish conserved from species-specific circular RNAs reveals that the expansion of the downstream intron by insertion of retrotransposons stabilizes circular RNAs' production across 30+ millions years of evolution.
Lotte Victoria Winther Stagsted, Eoghan Thomas O'Leary ... Thomas Birkballe Hansen
Transcriptome and eCLIP analyses in mouse and human reveal splicing factor proline/glutamine rich (SFPQ) as a conserved and critical guardian of long-intron integrity, splicing, and circular RNA (circRNA) production.
Fusion proteins composed of the Sleeping Beauty transposase and catalytically inactive Cas9 target transposon integration into genomic regions specified by single guide RNAs.
Evolutionary analyses suggest that most mammalian circRNAs did not emerge from common ancestral circRNA precursors, arguing against widespread functional conservation.
Matt J Silver, Ayden Saffari ... Andrew M Prentice
259 CpGs associated with season of conception in rural Gambians constitute a valuable resource for investigating epigenetic mechanisms linking early exposures to lifelong health and disease.
Isabella Horton, Conor J Kelly ... Edward B Chuong
An epigenomic analysis in mouse macrophages reveals that a highly abundant transposable element exhibits activity as an immune inducible regulatory element.
Uracil/adenine base pairs in HIV-1 DNA are attacked by the uracil base excision repair machinery in macrophages, which leads to HIV restriction and viral genome diversification by transcription-associated mutagenesis.