Annotation-free quantification of RNA splicing using LeafCutter.
Annotation-free quantification of RNA splicing using LeafCutter.
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DOI:
10.1038/s41588-017-0004-9
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发表时间:
2018-01
期刊:
影响因子:
30.8
通讯作者:
Pritchard JK
中科院分区:
文献类型:
--
作者:
Li YI;Knowles DA;Humphrey J;Barbeira AN;Dickinson SP;Im HK;Pritchard JK
The excision of introns from pre-mRNA is an essential step in mRNA processing. We developed LeafCutter to study sample and population variation in intron splicing. LeafCutter identifies variable splicing events from short-read RNA-seq data and finds events of high complexity. Our approach obviates the need for transcript annotations and circumvents the challenges in estimating relative isoform or exon usage in complex splicing events. LeafCutter can be used both for detecting differential splicing between sample groups, and for mapping splicing quantitative trait loci (sQTLs). Compared to contemporary methods, we find 1.4–2.1 times more sQTLs, many of which help us ascribe molecular effects to disease-associated variants. Strikingly, transcriptome-wide associations between LeafCutter intron quantifications and 40 complex traits increased the number of associated disease genes at 5% FDR by an average of 2.1-fold as compared to using gene expression levels alone. LeafCutter is fast, scalable, easy to use, and available online.
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DOI:
10.1126/science.1262110
发表时间:
2015-05-08
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
GTEx Consortium
通讯作者:
GTEx Consortium