Evidence map›Paper›PMID 37459519›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2023

Genomic and geographical structure of human cytomegalovirus.

Oscar J Charles, Cristina Venturini, Soren Gantt, Claire Atkinson, Paul Griffiths, Richard A Goldstein, Judith Breuer

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

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  11. The indirect effects of cytomegalovirus infection-mechanisms and consequences.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  12. Article
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  15. Article
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  18. A vaccine against cytomegalovirus: how close are we?The Journal of clinical investigation · 2025
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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

7 authors.

Oscar J CharlesDepartment of Infection, Immunity and Inflammation, University College London, Great Ormond Street Institute of Child Health, London WC1N 1EH, United Kingdom.ORCID 0000-0003-2578-5193
Cristina VenturiniDepartment of Infection, Immunity and Inflammation, University College London, Great Ormond Street Institute of Child Health, London WC1N 1EH, United Kingdom.ORCID 0000-0002-4769-7912
Soren GanttResearch Centre of the Sainte-Justine University Hospital and Department of Microbiology, Infectious Diseases and Immunology, University of Montréal, Montréal, Quebec H3T 1C5, Canada.ORCID 0000-0001-5743-3606
Claire AtkinsonDivision of Infection and Immunity, Institute for Immunity and Transplantation, University College London, London NW3 2PP, United Kingdom.
Paul GriffithsDivision of Infection and Immunity, Institute for Immunity and Transplantation, University College London, London NW3 2PP, United Kingdom.ORCID 0000-0001-9317-5915
Richard A GoldsteinDivision of Infection and Immunity, University College London, London WC1E 6BT, United Kingdom.ORCID 0000-0001-5148-4672
Judith BreuerDepartment of Infection, Immunity and Inflammation, University College London, Great Ormond Street Institute of Child Health, London WC1N 1EH, United Kingdom.ORCID 0000-0001-8246-0534

Funding

Medical Research Council MR/N013867/1Wellcome Trust 204870/Z/16/Z
6 · The paper itself

Abstract

Human cytomegalovirus (CMV) has infected humans since the origin of our species and currently infects most of the world's population. Variability between CMV genomes is the highest of any human herpesvirus, yet large portions of the genome are conserved. Here, we show that the genome encodes 74 regions of relatively high variability each with 2 to 8 alleles. We then identified two patterns in the CMV genome. Conserved parts of the genome and a minority (32) of variable regions show geographic population structure with evidence for African or European clustering, although hybrid strains are present. We find no evidence that geographic segregation has been driven by host immune pressure affecting known antigenic sites. Forty-two variable regions show no geographical structure, with similar allele distributions across different continental populations. These "nongeographical" regions are significantly enriched for genes encoding immunomodulatory functions suggesting a core functional importance. We hypothesize that at least two CMV founder populations account for the geographical differences that are largely seen in the conserved portions of the genome, although the timing of separation and direction of spread between the two are not clear. In contrast, the similar allele frequencies among 42 variable regions of the genome, irrespective of geographical origin, are indicative of a second evolutionary process, namely balancing selection that may preserve properties critical to CMV biological function. Given that genetic differences between CMVs are postulated to alter immunogenicity and potentially function, understanding these two evolutionary processes could contribute important information for the development of globally effective vaccines and the identification of novel drug targets.

Indexed as

CytomegalovirusCytomegalovirus InfectionsGene FrequencyGenomicsHumansgenomicsgenotypinghidden Markov modelshuman cytomegalovirushypervariability

Identifiers

PMID37459519
PMCPMC10372631

What OpenQuestion holds

Textmetadata
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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.