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 »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 »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 ...
Read More »SNPlice – identify cis-acting, splice-modulating variants from RNA-seq datasets
The growing recognition of the importance of splicing in eukaryotes, together with rapidly accumulating RNA-sequencing data, demand robust high-throughput approaches, which efficiently analyze experimentally derived whole-transcriptome splice profiles. Researchers from The George Washington University have developed a computational approach, called ...
Read More »A flexible Bayesian method for detecting allelic imbalance in RNA-seq data
One method of identifying cis regulatory differences is to analyze allele-specific expression (ASE) and identify cases of allelic imbalance (AI). RNA-seq is the most common way to measure ASE and a binomial test is often applied to determine statistical significance ...
Read More »SUPPA – a super-fast pipeline for alternative splicing analysis from RNA-Seq
High-throughput RNA sequencing allows genome-wide analyses of pre-mRNA splicing across multiple conditions. However, the increasing number of available datasets represents a major challenge in terms of time and storage required for analyses. Now, a team led by researchers at the ...
Read More »51% of non-canonical splice sites are not annotated in GENCODE
Scientists at the Pontifical Catholic University of Chile have uncovered the diversity of non-canonical splice sites at the human transcriptome using deep transcriptome profiling. They mapped a total of 3.7 billion human RNA-seq reads and developed a set of stringent ...
Read More »MAMBA – Assessing allele specific expression across multiple tissues from RNA-seq read data
RNA sequencing enables allele specific expression (ASE) studies that complement standard genotype expression studies for common variants and, importantly, also allow measuring the regulatory impact of rare variants. The Genotype-Tissue Expression project (GTEx) is collecting RNA-seq data on multiple tissues ...
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