Evidence map›Paper›PMID 25329461›Full record

ArticlePLoS genetics2014

Selection on a variant associated with improved viral clearance drives local, adaptive pseudogenization of interferon lambda 4 (IFNL4).

Felix M Key, Benjamin Peter, Megan Y Dennis, Emilia Huerta-Sánchez, Wei Tang, Ludmila Prokunina-Olsson, Rasmus Nielsen, Aida M Andrés

Erratum issuedAbstract read
In one paragraph

Article in PLoS genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing 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

60 citing papers in PubMed.

  1. Article
  2. Variants ofGenes · 2023
    Article
  3. Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research · 2023
    Article
  4. Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research · 2023
    Article
  5. Review
  6. No Association of IFNL4 Genotype With Opportunistic Infections and Cancers Among Men With Human Immunodeficiency Virus 1 Infection.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. SARS-CoV-2 infection in India bucks the trend: Trained innate immunity?American journal of human biology : the official journal of the Human Biology Council · 2021
    Article
  15. Article
  16. HepaticInternational journal of molecular sciences · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors.

Felix M KeyDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Benjamin PeterDepartment of Integrative Biology, University of California Berkeley, Berkeley, California, United States of America.
Megan Y DennisDepartment of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, United States of America.
Emilia Huerta-SánchezSchool of Natural Sciences, University of California Merced, Merced, California, United States of America.
Wei TangLaboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America.
Ludmila Prokunina-OlssonLaboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America.
Rasmus NielsenDepartment of Integrative Biology, University of California Berkeley, Berkeley, California, United States of America.
Aida M AndrésDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.

Funding

Population Genetic Inferences From Dense Genotype DataR01HG003229 · NHGRI · CORNELL UNIVERSITY ITHACA · PI BUSTAMANTE, CARLOS DANIEL, CLARK, ANDREW G · 2004 to 2013
$4.8M
Characterization of Human-Specific Duplicated Genes Implicated in NeurocognitiveK99NS083627 · NINDS · UNIVERSITY OF WASHINGTON · PI DENNIS, MEGAN Y · 2013 to 2014
$180k
Intramural NIH HHSNHGRI NIH HHS R01 HG003229NHGRI NIH HHS R01HG003229NHGRI NIH HHS R01HG003229-08S2NINDS NIH HHS K99 NS083627NINDS NIH HHS K99NS083627
6 · The paper itself

Abstract

Interferon lambda 4 gene (IFNL4) encodes IFN-λ4, a new member of the IFN-λ family with antiviral activity. In humans IFNL4 open reading frame is truncated by a polymorphic frame-shift insertion that eliminates IFN-λ4 and turns IFNL4 into a polymorphic pseudogene. Functional IFN-λ4 has antiviral activity but the elimination of IFN-λ4 through pseudogenization is strongly associated with improved clearance of hepatitis C virus (HCV) infection. We show that functional IFN-λ4 is conserved and evolutionarily constrained in mammals and thus functionally relevant. However, the pseudogene has reached moderately high frequency in Africa, America, and Europe, and near fixation in East Asia. In fact, the pseudogenizing variant is among the 0.8% most differentiated SNPs between Africa and East Asia genome-wide. Its raise in frequency is associated with additional evidence of positive selection, which is strongest in East Asia, where this variant falls in the 0.5% tail of SNPs with strongest signatures of recent positive selection genome-wide. Using a new Approximate Bayesian Computation (ABC) approach we infer that the pseudogenizing allele appeared just before the out-of-Africa migration and was immediately targeted by moderate positive selection; selection subsequently strengthened in European and Asian populations resulting in the high frequency observed today. This provides evidence for a changing adaptive process that, by favoring IFN-λ4 inactivation, has shaped present-day phenotypic diversity and susceptibility to disease.

Indexed as

Selection, GeneticAfricaAnimalsAsia, EasternAsian PeopleBase SequenceBayes TheoremConserved SequenceGene FrequencyGenetic Predisposition to DiseaseGenetics, PopulationGenome, HumanHaplotypesHepatitis CHumansInterferon LambdaIFNL4 protein, humanInterferon LambdaInterleukins

Identifiers

PMID25329461
PMCPMC4199494

What OpenQuestion holds

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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.