Evidence map›Paper›PMID 39261454›Full record

ArticleNature communications2024

The simplicity of protein sequence-function relationships.

Yeonwoo Park, Brian P H Metzger, Joseph W Thornton

Abstract read
In one paragraph

Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

52 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Artificial Intelligence Powers Protein Functional Annotation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
  9. Article
  10. Determinants of metal import and specificity in a bacterial transporter.bioRxiv : the preprint server for biology · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Choice of phenotype scale is critical in biobank-based G×E tests.bioRxiv : the preprint server for biology · 2026
    Article
  18. Review
  19. Epistatic drift in protein evolution.Current opinion in genetics & development · 2025
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Yeonwoo ParkCommittee on Genetics, Genomics, and Systems Biology, University of Chicago, Chicago, IL, USA.
Brian P H MetzgerDepartment of Ecology and Evolution, University of Chicago, Chicago, IL, USA.ORCID 0000-0003-4878-2913
Joseph W ThorntonDepartment of Ecology and Evolution, University of Chicago, Chicago, IL, USA. joet1@uchicago.edu.ORCID 0000-0001-9589-6994

Funding

Genetic and biophysical causes of historical protein evolutionR35GM145336 · NIGMS · UNIVERSITY OF CHICAGO · PI Joseph W Thornton · 2022 to 2026
$2.6M
Comprehensive analysis of fitness effects and epistasis along a billion-year evolutionary trajectoryR01GM139007 · NIGMS · UNIVERSITY OF CHICAGO · PI BOLON, DANIEL N, THORNTON, JOSEPH W · 2021 to 2024
$2.2M
Deep characterization of the sequence space and evolutionary trajectories of reconstructed ancestral proteins - Resubmission 01R01GM121931 · NIGMS · UNIVERSITY OF CHICAGO · PI THORNTON, JOSEPH W · 2017 to 2020
$1.3M
Evolution of molecular complexes: genetic, structural, and functional mechanisms for the evolution of oligomers and allosteryR01GM131128 · NIGMS · UNIVERSITY OF CHICAGO · PI THORNTON, JOSEPH W · 2019 to 2021
$904k
Evolving and characterizing alternative paths towards changes in DNA specificity of steroid hormone receptorsF32GM122251 · NIGMS · UNIVERSITY OF CHICAGO · PI METZGER, BRIAN PATRICK HANSEN · 2017 to 2019
$179k
NIGMS NIH HHS F32 GM122251NIGMS NIH HHS R01 GM121931NIGMS NIH HHS R01 GM131128NIGMS NIH HHS R01 GM139007NIGMS NIH HHS R35 GM145336U.S. Department of Health & Human Services | National Institutes of Health (NIH) F32GM122251U.S. Department of Health & Human Services | National Institutes of Health (NIH) R01GM121931U.S. Department of Health & Human Services | National Institutes of Health (NIH) R01GM131128
6 · The paper itself

Abstract

How complex are the rules by which a protein's sequence determines its function? High-order epistatic interactions among residues are thought to be pervasive, suggesting an idiosyncratic and unpredictable sequence-function relationship. But many prior studies may have overestimated epistasis, because they analyzed sequence-function relationships relative to a single reference sequence-which causes measurement noise and local idiosyncrasies to snowball into high-order epistasis-or they did not fully account for global nonlinearities. Here we present a reference-free method that jointly infers specific epistatic interactions and global nonlinearity using a bird's-eye view of sequence space. This technique yields the simplest explanation of sequence-function relationships and is more robust than existing methods to measurement noise, missing data, and model misspecification. We reanalyze 20 experimental datasets and find that context-independent amino acid effects and pairwise interactions, along with a simple nonlinearity to account for limited dynamic range, explain a median of 96% of phenotypic variance and over 92% in every case. Only a tiny fraction of genotypes are strongly affected by higher-order epistasis. Sequence-function relationships are also sparse: a miniscule fraction of amino acids and interactions account for 90% of phenotypic variance. Sequence-function causality across these datasets is therefore simple, opening the way for tractable approaches to characterize proteins' genetic architecture.

Indexed as

Epistasis, GeneticAlgorithmsAmino Acid SequenceGenotypePhenotypeProteinsProteins

Identifiers

PMID39261454
PMCPMC11390738

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Registered trials

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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.