Allele-specific expression (ASE) analysis, which quantifies the relative expression of two alleles in a diploid individual, is a powerful tool for identifying cis-regulated gene expression variations that underlie...
Read More »Hierarchical analysis of RNA-Seq reads improves the accuracy of allele-specific expression
Allele-specific expression (ASE) refers to the differential abundance of the allelic copies of a transcript. RNA sequencing (RNA-Seq) can provide quantitative estimates of ASE for genes with transcribed polymorphisms. When short-read sequences are aligned to a diploid transcriptome, readmapping ambiguities ...
Read More »Direct testing for allele-specific expression differences between conditions
Allelic imbalance (AI) indicates the presence of functional variation in cis regulatory regions. Detecting cis regulatory differences using AI is widespread, yet there is no formal statistical methodology that tests whether AI differs between conditions. Here a team led by ...
Read More »Modeling allele-specific gene expression by single-cell RNA sequencing
Allele-specific expression is traditionally studied by bulk RNA sequencing, which measures average expression across cells. Single-cell RNA sequencing (scRNA-seq) allows the comparison of expression distribution between the two alleles of a diploid organism and thus the characterization of allele-specific bursting. ...
Read More »MutRSeq – a statistical method for detecting differentially expressed SNVs based on next-generation RNA-seq data
A team led by researchers at the University of Washington has developed a new statistical method-MutRSeq-for detecting differentially expressed single nucleotide variants (SNVs) based on RNA-seq data. Specifically, we focus on nonsynonymous mutations and employ a hierarchical likelihood approach to jointly ...
Read More »ASE-TIGAR – A Bayesian approach for estimating allele-specific expression from RNA-Seq data with diploid genomes
RNA-sequencing (RNA-Seq) has become a popular tool for transcriptome profiling in mammals. However, accurate estimation of allele-specific expression (ASE) based on alignments of reads to the reference genome is challenging, because it contains only one allele on a mosaic haploid ...
Read More »Wanted – RNA-Seq Bioinformaticians
Analysis of Allele Specific Expression using RNA-seq DataProject Project Start Date: Winter 2016 Project Description: Recently developed sequencing technologies allow for the identification of a higher level of expression of one copy of a chromosome compared to the other copy. ...
Read More »Improve the statistical power of your cis-eQTL mapping for RNA-Seq data
Studies of expression quantitative trait loci (eQTLs) offer insight into the molecular mechanisms of loci that were found to be associated with complex diseases and the mechanisms can be classified into cis- and trans-acting regulation. At present, high-throughput RNA sequencing ...
Read More »>80% of stochastic allele-specific expression due to single-cell RNA-seq technical noise
Single-cell RNA-sequencing (scRNA-seq) facilitates identification of new cell types and gene regulatory networks as well as dissection of the kinetics of gene expression and patterns of allele-specific expression. However, to facilitate such analyses, separating biological variability from the high level ...
Read More »Recommendations for Accurate Resolution of Gene and Isoform Allele-Specific Expression in RNA-Seq Data
Genetic variation modulates gene expression transcriptionally or post-transcriptionally, and can profoundly alter an individual’s phenotype. Measuring allelic differential expression at heterozygous loci within an individual, a phenomenon called allele-specific expression (ASE), can assist in identifying such factors. Massively parallel DNA ...
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