Evidence map›Paper›PMID 28265094›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Multiple origins of viral capsid proteins from cellular ancestors.

Mart Krupovic, Eugene V Koonin

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 159 papers.

0numbers the graph read from it
0cells of the map it votes in
159citing papers in PubMed
28.0field-weighted citation impact, top 1% 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

159 citing papers in PubMed, 289 citations in OpenAlex.

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  11. The dual-origin hypothesis of viruses under environmental stress and energy crisis.Theory in biosciences = Theorie in den Biowissenschaften · 2026
    Article
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  14. Basic Virology.Advances in experimental medicine and biology · 2026
    Review
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99 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 2 countries.

Mart KrupovicInstitut Pasteur, Department of Microbiology, Unité Biologie Moléculaire du Gène chez les Extrêmophiles, 75015 Paris, France; koonin@ncbi.nlm.nih.gov krupovic@pasteur.fr.ORCID 0000-0001-5486-0098
Eugene V KooninNational Center for Biotechnology Information, National Library of Medicine, Bethesda, MD 20894 koonin@ncbi.nlm.nih.gov krupovic@pasteur.fr.
Institut Pasteur · FRNational Center for Biotechnology Information · US

Funding

Finding Protein Sequence Motifs--Methods And ApplicationsZIALM000061 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$10.6M
6 · The paper itself

Abstract

Viruses are the most abundant biological entities on earth and show remarkable diversity of genome sequences, replication and expression strategies, and virion structures. Evolutionary genomics of viruses revealed many unexpected connections but the general scenario(s) for the evolution of the virosphere remains a matter of intense debate among proponents of the cellular regression, escaped genes, and primordial virus world hypotheses. A comprehensive sequence and structure analysis of major virion proteins indicates that they evolved on about 20 independent occasions, and in some of these cases likely ancestors are identifiable among the proteins of cellular organisms. Virus genomes typically consist of distinct structural and replication modules that recombine frequently and can have different evolutionary trajectories. The present analysis suggests that, although the replication modules of at least some classes of viruses might descend from primordial selfish genetic elements, bona fide viruses evolved on multiple, independent occasions throughout the course of evolution by the recruitment of diverse host proteins that became major virion components.

Indexed as

AnimalsArchaeaBiological EvolutionCapsid ProteinsEukaryotaGenome, ViralHumansModels, MolecularPhylogenyVirusesCapsid Proteinscapsid proteinsnucleocapsidsorigin of virusesprimordial repliconsvirus evolution

Identifiers

PMID28265094
PMCPMC5373398
OpenAlexW2593728374

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.