Evidence map›Paper›PMID 41751600›Full record

ArticleGenes2026

Missense Constraint in Intrinsically Disordered Proteins Enhances Missense Variant Interpretation in Neurodevelopmental Disorders.

Nazareth D J Robles, Silvio C E Tosatto, Maria Cristina Aspromonte

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Article in Genes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

3 authors.

Nazareth D J RoblesDepartment in Biomedical Sciences, University of Padova, 35131 Padova, Italy.
Silvio C E TosattoDepartment in Biomedical Sciences, University of Padova, 35131 Padova, Italy.ORCID 0000-0003-4525-7793
Maria Cristina AspromonteDepartment in Biomedical Sciences, University of Padova, 35131 Padova, Italy.ORCID 0000-0002-4937-6952

Funding

Horizon Europe 101160233Horizon Europe 101182949PNRR CN00000041PNRR IR0000010
6 · The paper itself

Abstract

BACKGROUND/

objectivesInterpreting missense variants in intrinsically disordered proteins (IDPs) remains a major challenge, as these proteins lack stable structure and are under-represented in experimental and clinical annotations. Variants occurring in IDPs are disproportionately classified as variants of uncertain significance (VUS), reflecting the absence of appropriate predictive tools rather than true biological neutrality. Here, we address this challenge using a curated dataset of neurodevelopmental disorder (NDD)-associated proteins.

methodsWe integrated curated and predicted disorder annotations from DisProt and MobiDB to characterize the structural landscape of 339 NDD-associated proteins. To quantify a regional genetic constraint, we recalculated the Missense Tolerance Ratio (MTR) using a published framework adapted to the recent gnomAD release (v4.1.0). Integration with 33,124 ClinVar-reported missense variants revealed that, while mean constraint levels differ only modestly across structural states, ordered and structural transition regions show the strongest depletion of missense variation.

resultsMTR identifies localized low-tolerance subregions within IDRs, indicating that these regions are not uniformly permissive and can harbor functionally essential elements.

conclusionsOverall, our results demonstrate that missense constraint in NDD proteins is highly localized and context-dependent, and that integrating high-quality disorder annotations with updated MTR profiles can improve the prioritization and interpretation of missense variants in IDRs and IDPs.

Indexed as

Intrinsically Disordered ProteinsMutation, MissenseNeurodevelopmental DisordersHumansIntrinsically Disordered Proteinsintrinsically disordered proteins (IDPs)intrinsically disordered regions (IDRs)Missense Tolerance Ratio (MTR)neurodevelopmental disorders (NDDs)

Identifiers

PMID41751600
PMCPMC12940526

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.