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U1 Adaptors Result in Reduction of Multiple pre-mRNA Species Principally by Sequestering U1snRNP
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U1 Adaptors Result in Reduction of Multiple pre-mRNA Species Principally by Sequestering U1snRNP

U1 Adaptors Result in Reduction of Multiple pre-mRNA Species Principally by Sequestering U1snRNP
News

U1 Adaptors Result in Reduction of Multiple pre-mRNA Species Principally by Sequestering U1snRNP

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Abstract

U1 Adaptors are a recently reported novel approach for targeted reduction of mRNA transcripts. A U1 adaptor oligonucleotide comprising of a target-complimentary hybridization domain and a U1 recruitment domain, directs the U1 snRNP complex to the terminal exon of a targeted gene, subsequently inhibiting poly(A) tail addition and leading to degradation of that RNA species within the nucleus. Here, we present data demonstrating U1 adapter-mediated gene silencing can result in significant 'off-target' silencing effects as demonstrated by the reduction of multiple mRNA species that were not intended to be targeted. Our data suggest that a substantial portion of this U1 adaptor-mediated off-target mRNA reduction is the result of sequestration U1 snRNP at levels sufficient to affect splicing and processing of non-target transcripts.

This article is published online in the journal Nucleic Acids Research and is free to access.

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