ExpansionHunter: a sequence-graph-based tool to analyze variation in short tandem repeat regions.

Dolzhenko, Egor; Deshpande, Viraj; Schlesinger, Felix; Krusche, Peter; Petrovski, Roman; Chen, Sai; Emig-Agius, Dorothea; Gross, Andrew et al. · Bioinformatics · 2019

basic_science · Level V

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Abstract

We describe a novel computational method for genotyping repeats using sequence graphs. This method addresses the long-standing need to accurately genotype medically important loci containing repeats adjacent to other variants or imperfect DNA repeats such as polyalanine repeats. Here we introduce a new version of our repeat genotyping software, ExpansionHunter, that uses this method to perform targeted genotyping of a broad class of such loci. ExpansionHunter is implemented in C++ and is available under the Apache License Version 2.0. The source code, documentation, and Linux/macOS binaries are available at https://github.com/Illumina/ExpansionHunter/. Supplementary data are available at Bioinformatics online.

Medical subject headings