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Estimation of data-specific constitutive exons with RNA-Seq data.


ABSTRACT: BACKGROUND: RNA-Seq has the potential to answer many diverse and interesting questions about the inner workings of cells. Estimating changes in the overall transcription of a gene is not straightforward. Changes in overall gene transcription can easily be confounded with changes in exon usage which alter the lengths of transcripts produced by a gene. Measuring the expression of constitutive exons--xons which are consistently conserved after splicing--ffers an unbiased estimation of the overall transcription of a gene. RESULTS: We propose a clustering-based method, exClust, for estimating the exons that are consistently conserved after splicing in a given data set. These are considered as the exons which are "constitutive" in this data. The method utilises information from both annotation and the dataset of interest. The method is implemented in an openly available R function package, sydSeq. CONCLUSION: When used on two real datasets exClust includes more than three times as many reads as the standard UI method, and improves concordance with qRT-PCR data. When compared to other methods, our method is shown to produce robust estimates of overall gene transcription.

SUBMITTER: Patrick E 

PROVIDER: S-EPMC3656776 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Estimation of data-specific constitutive exons with RNA-Seq data.

Patrick Ellis E   Buckley Michael M   Yang Yee Hwa YH  

BMC bioinformatics 20130129


<h4>Background</h4>RNA-Seq has the potential to answer many diverse and interesting questions about the inner workings of cells. Estimating changes in the overall transcription of a gene is not straightforward. Changes in overall gene transcription can easily be confounded with changes in exon usage which alter the lengths of transcripts produced by a gene. Measuring the expression of constitutive exons--xons which are consistently conserved after splicing--ffers an unbiased estimation of the ov  ...[more]

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