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Noncoding RNAs (ncRNAs) have recently been discovered to regulate mRNA transcription in trans, a role traditionally reserved for proteins. The breadth of ncRNAs as transacting transcriptional regulators and the diversity of signals to which they respond are only now becoming recognized. Here we show that human Alu RNA, transcribed from short interspersed(More)
Alternative splicing is a regulated process that results in expression of specific mRNA and protein isoforms. Alternative splicing factors determine the relative abundance of each isoform. Here we focus on MBNL1, a splicing factor misregulated in the disease myotonic dystrophy. By altering the concentration of MBNL1 in cells across a broad dynamic range, we(More)
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