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. 2024 Nov 14;187(23):6725-6741.e13.
doi: 10.1016/j.cell.2024.09.003. Epub 2024 Sep 30.

Pervasive mislocalization of pathogenic coding variants underlying human disorders

Affiliations

Pervasive mislocalization of pathogenic coding variants underlying human disorders

Jessica Lacoste et al. Cell. .

Abstract

Widespread sequencing has yielded thousands of missense variants predicted or confirmed as disease causing. This creates a new bottleneck: determining the functional impact of each variant-typically a painstaking, customized process undertaken one or a few genes and variants at a time. Here, we established a high-throughput imaging platform to assay the impact of coding variation on protein localization, evaluating 3,448 missense variants of over 1,000 genes and phenotypes. We discovered that mislocalization is a common consequence of coding variation, affecting about one-sixth of all pathogenic missense variants, all cellular compartments, and recessive and dominant disorders alike. Mislocalization is primarily driven by effects on protein stability and membrane insertion rather than disruptions of trafficking signals or specific interactions. Furthermore, mislocalization patterns help explain pleiotropy and disease severity and provide insights on variants of uncertain significance. Our publicly available resource extends our understanding of coding variation in human diseases.

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Conflict of interest statement

Declaration of interests A.E.C. serves as a scientific advisor for Recursion, Quiver, and SyzOnc, which use image-based profiling for drug discovery, and receives honoraria for occasional talks at pharmaceutical and biotechnology companies. F.P.R. is a scientific advisor and investor in Constantiam Biosciences, which provides tools for clinical variant annotation.

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