PAPERCLIP Identifies MicroRNA Targets and a Role of CstF64/64tau in Promoting Non-canonical poly(A) Site Usage.
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA275863 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR1810990.fastq.gz | Fastqsanger.gz | |||
| SRR1811000.fastq.gz | Fastqsanger.gz | |||
| SRR1810991.fastq.gz | Fastqsanger.gz | |||
| SRR1811001.fastq.gz | Fastqsanger.gz | |||
| SRR1810992.fastq.gz | Fastqsanger.gz |
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Project description:Accurate and precise annotation of 3' UTRs is critical for understanding how mRNAs are regulated by microRNAs (miRNAs) and RNA-binding proteins (RBPs). Here, we describe a method, poly(A) binding protein-mediated mRNA 3' end retrieval by crosslinking immunoprecipitation (PAPERCLIP), that shows high specificity for mRNA 3' ends and compares favorably with existing 3' end mapping methods. PAPERCLIP uncovers a previously unrecognized role of CstF64/64tau in promoting the usage of a selected group of non-canonical poly(A) sites, the majority of which contain a downstream GUKKU motif. Furthermore, in the mouse brain, PAPERCLIP discovers extended 3' UTR sequences harboring functional miRNA binding sites and reveals developmentally regulated APA shifts, including one in Atp2b2 that is evolutionarily conserved in humans and results in the gain of a functional binding site of miR-137. PAPERCLIP provides a powerful tool to decipher post-transcriptional regulation of mRNAs through APA in vivo.
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Project description:Accurate and precise annotation of 3' UTRs is critical for understanding how mRNAs are regulated by microRNAs (miRNAs) and RNA-binding proteins (RBPs). Here, we describe a method, poly(A) binding protein-mediated mRNA 3' end retrieval by crosslinking immunoprecipitation (PAPERCLIP), that shows high specificity for mRNA 3' ends and compares favorably with existing 3' end mapping methods. PAPERCLIP uncovers a previously unrecognized role of CstF64/64tau in promoting the usage of a selected group of non-canonical poly(A) sites, the majority of which contain a downstream GUKKU motif. Furthermore, in the mouse brain, PAPERCLIP discovers extended 3' UTR sequences harboring functional miRNA binding sites and reveals developmentally regulated APA shifts, including one in Atp2b2 that is evolutionarily conserved in humans and results in the gain of a functional binding site of miR-137. PAPERCLIP provides a powerful tool to decipher post-transcriptional regulation of mRNAs through APA in vivo.
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