Cited by 9Genomics and Rare DiseasesEvolution and Genetic DynamicsProtein Structure and Dynamics

A unified analysis of evolutionary and population constraint in protein domains highlights structural features and pathogenic sites

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MacGowan, Stuart A., Madeira, Fábio, Britto-Borges, Thiago, Barton, Geoffrey J.·2024·Communications Biology

Published version of a preprint

Abstract

Protein evolution is constrained by structure and function, creating patterns in residue conservation that are routinely exploited to predict structure and other features. Similar constraints should affect variation across individuals, but it is only with the growth of human population sequencing that this has been tested at scale. Now, human population constraint has established applications in pathogenicity prediction, but it has not yet been explored for structural inference. Here, we map 2.4 million population variants to 5885 protein families and quantify residue-level constraint with a new Missense Enrichment Score (MES). Analysis of 61,214 structures from the PDB spanning 3661 families shows that missense depleted sites are enriched in buried residues or those involved in small-molecule or protein binding. MES is complementary to evolutionary conservation and a combined analysis allows a new classification of residues according to a conservation plane. This approach finds functional residues that are evolutionarily diverse, which can be related to specificity, as well as family-wide conserved sites that are critical for folding or function. We also find a possible contrast between lethal and non-lethal pathogenic sites, and a surprising clinical variant hot spot at a subset of missense enriched positions.

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Authors
MacGowan, S. A., Madeira, F., Britto-Borges, T., & Barton, G. J.
Affiliations
  • University of Dundee (GB)
  • European Bioinformatics Institute (GB)
Corresponding author
Barton, Geoffrey J.
Venue
Communications Biology
Published
2024-04-11
Volume
7
Issue
1
Pages
447-447
ISSN
2399-3642 (ISSN-L)
OpenAlex
W4394724740
Cited by
8
References
105
Citations by year
2026: 5 · 2025: 2 · 2024: 1
FWCI
2.12
Type
journal article
Language
en
Open access
Locations
  • Communications Biology (publishedVersion, cc-by)
  • Research Square (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Discovery Research Portal (University of Dundee) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • RCUK | Biotechnology and Biological Sciences Research Council (BB/J019364/1, BB/R014752/1)
  • Wellcome Trust (101651/Z/13/Z, 218259/Z/19/Z, 100150/Z/12/Z)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
protein domains, population constraints, missense mutations, amino acid conservation, protein structure prediction, pathogenicity prediction, buried residues, protein binding sites
MeSH terms
Protein Domains, Base Sequence, Humans, Protein Binding, Proteins

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