Evidence map›Paper›PMID 32745183›Full record

ArticleMolecular biology and evolution2021

Relevance of Higher-Order Epistasis in Drug Resistance.

Elena R Lozovsky, Rachel F Daniels, Gavin D Heffernan, David P Jacobus, Daniel L Hartl

Open access · hybridAbstract read
In one paragraph

Article in Molecular biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
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

10 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. The simplicity of protein sequence-function relationships.bioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Inferring Epistasis from Genetic Time-series Data.Molecular biology and evolution · 2022
    Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Elena R LozovskyDepartment of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA.
Rachel F DanielsDepartment of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA.
Gavin D HeffernanJacobus Pharmaceutical Company, Inc., Princeton, NJ.
David P JacobusJacobus Pharmaceutical Company, Inc., Princeton, NJ.
Daniel L HartlDepartment of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA.
Harvard University · USJacobi Medical Center · US

Funding

Novel Genetic Mechanism of Artemisinin Resistance for MalariaR01AI099105 · NIAID · HARVARD SCHOOL OF PUBLIC HEALTH · PI HARTL, DANIEL L, WIRTH, DYANN F · 2013 to 2021
$5.4M
NIAID NIH HHS R01 AI099105
6 · The paper itself

Abstract

We studied five chemically distinct but related 1,3,5-triazine antifolates with regard to their effects on growth of a set of mutants in dihydrofolate reductase. The mutants comprise a combinatorially complete data set of all 16 possible combinations of four amino acid replacements associated with resistance to pyrimethamine in the malaria parasite Plasmodium falciparum. Pyrimethamine was a mainstay medication for malaria for many years, and it is still in use in intermittent treatment during pregnancy or as a partner drug in artemisinin combination therapy. Our goal was to investigate the extent to which the alleles yield similar adaptive topographies and patterns of epistasis across chemically related drugs. We find that the adaptive topographies are indeed similar with the same or closely related alleles being fixed in computer simulations of stepwise evolution. For all but one of the drugs the topography features at least one suboptimal fitness peak. Our data are consistent with earlier results indicating that third order and higher epistatic interactions appear to contribute only modestly to the overall adaptive topography, and they are largely conserved. In regard to drug development, our data suggest that higher-order interactions are likely to be of little value as an advisory tool in the choice of lead compounds.

Indexed as

Epistasis, GeneticFolic Acid AntagonistsPyrimethamineAdaptation, BiologicalAllelesDrug ResistanceEvolution, MolecularGenetic FitnessPlasmodium falciparumSaccharomyces cerevisiaeTetrahydrofolate DehydrogenaseFolic Acid AntagonistsPyrimethamineTetrahydrofolate Dehydrogenaseadaptive topographydihydrofolate reductasedrug developmentepistasisPlasmodium falciparumtriazine antifolates

Identifiers

PMID32745183
PMCPMC7782864
OpenAlexW3046952255

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.