AllelicImbalance

AllelicImbalance detects and quantifies allele-specific expression from RNA-seq reads overlapping heterozygous single-nucleotide polymorphisms to characterize allelic imbalance.


Key Features:

  • Detection of Allelic Imbalance: Detects allelic imbalance by examining RNA-seq reads aligned over heterozygous single-nucleotide polymorphisms (SNPs) to identify differential expression between alleles.
  • Comprehensive Workflow Management: Integrates quality control, alignment, and allele-specific read counting to manage processing steps and reduce technical biases.
  • Bias Detection and Mitigation: Identifies and corrects technical biases arising from sequence differences between alleles to improve reliability of ASE measurements.
  • Visualization Capabilities: Visualizes allelic imbalance across genomic regions such as exons to reveal spatial patterns of allele-specific expression.
  • ASEset Management Class: Provides the ASEset class to represent and manage allele-specific expression data and associated metadata.

Scientific Applications:

  • Genetic Research: Enables identification of genetic variants that influence gene expression by quantifying ASE at heterozygous SNPs.
  • Functional Genomics: Supports investigation of transcriptome-level consequences of genetic variation through detection and visualization of allele-specific expression.
  • Personalized Medicine: Facilitates identification of allele-specific expression patterns relevant to disease susceptibility or drug response.

Methodology:

Analyzes RNA-seq data aligned over heterozygous SNPs via quality control, alignment to a reference, allele-specific read counting, and identification/correction of technical biases.

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Details

License:
GPL-3.0
Tool Type:
command-line tool, library
Operating Systems:
Linux, Windows, Mac
Programming Languages:
R
Added:
1/17/2017
Last Updated:
1/11/2019

Operations

Publications

Gådin JR, van’t Hooft FM, Eriksson P, Folkersen L. AllelicImbalance: an R/ bioconductor package for detecting, managing, and visualizing allele expression imbalance data from RNA sequencing. BMC Bioinformatics. 2015;16(1). doi:10.1186/s12859-015-0620-2. PMID:26066318. PMCID:PMC4465016.

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