Unknown,Transcriptomics,Genomics,Proteomics

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Digital gene expression and global mapping of polyadenylation sites with PolyA-Seq


ABSTRACT: We describe PolyA-Seq, a strand-specific method for high-throughput sequencing of the 3' ends of polyadenylated transcripts. PolyA-Seq is as accurate for digital gene expression as existing RNA sequencing approaches, and superior to microarrays. We used the approach to map polyadenylation (polyA) sites in 24 samples from normal tissues in human, rhesus, dog, mouse, and rat. Detection of polyA sites in a mixture of 24 tissues in human, mouse, rat, dog and rhesus. Samples included two replicates each of MAQC Human Brain Reference and MAQC Universal Human Reference. Two additional human sets of reads are included that were used to distinguish true polyA sites from internal priming sites.

ORGANISM(S): Homo sapiens

SUBMITTER: Adnan Derti 

PROVIDER: E-GEOD-30198 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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We developed PolyA-seq, a strand-specific and quantitative method for high-throughput sequencing of 3' ends of polyadenylated transcripts, and used it to globally map polyadenylation (polyA) sites in 24 matched tissues in human, rhesus, dog, mouse, and rat. We show that PolyA-seq is as accurate as existing RNA sequencing (RNA-seq) approaches for digital gene expression (DGE), enabling simultaneous mapping of polyA sites and quantitative measurement of their usage. In human, we confirmed 158,533  ...[more]

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