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  • RNA-Seq: MATS: a Bayesian framework for flexible detection of differential alternativ

    Syndicated from PubMed RSS Feeds

    MATS: a Bayesian framework for flexible detection of differential alternative splicing from RNA-Seq data.

    Nucleic Acids Res. 2012 Jan 20;

    Authors: Shen S, Won Park J, Huang J, Dittmar KA, Lu ZX, Zhou Q, Carstens RP, Xing Y


    Abstract
    Ultra-deep RNA sequencing has become a powerful approach for genome-wide analysis of pre-mRNA alternative splicing. We develop MATS (multivariate analysis of transcript splicing), a Bayesian statistical framework for flexible hypothesis testing of differential alternative splicing patterns on RNA-Seq data. MATS uses a multivariate uniform prior to model the between-sample correlation in exon splicing patterns, and a Markov chain Monte Carlo (MCMC) method coupled with a simulation-based adaptive sampling procedure to calculate the P-value and false discovery rate (FDR) of differential alternative splicing. Importantly, the MATS approach is applicable to almost any type of null hypotheses of interest, providing the flexibility to identify differential alternative splicing events that match a given user-defined pattern. We evaluated the performance of MATS using simulated and real RNA-Seq data sets. In the RNA-Seq analysis of alternative splicing events regulated by the epithelial-specific splicing factor ESRP1, we obtained a high RT-PCR validation rate of 86% for differential exon skipping events with a MATS FDR of

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