fastCDS: proteome-scale mapping of protein domains to genomic coordinates

Authors

Munoz-Esquivel, G., Fuxman Bass, J. I., Soto-Ugaldi, L. F.

Abstract

Abstract Summary: Mapping protein regions to genomic coordinates underpins the study of exon architecture and the interpretation of clinical variants in their exon context. Existing tools resolve individual queries accurately but scale poorly to proteome-wide analyses. We present fastCDS, a C++ toolkit with command line and Python interfaces for rapid protein-to-genome coordinate mapping from GTF annotations. It matches the accuracy of existing methods while running at least two to three orders of magnitude faster. Mapping all human Pfam domains in seconds, we used the resulting atlas to examine how exonic architecture varies with domain function. Availability and Implementation: fastCDS is freely available under the MIT license at {{https://github.com/SotoLF/fastCDS}} and can be installed with pip install fastCDS or mamba install -c bioconda fastCDS. Pre-built GTF genome indices are archived at Zenodo, DOI: https://zenodo.org/records/21436146.

Preprint server: bioRxiv
The authors list and abstract were imported from bioRxiv on 24 Jul 2026.

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