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Journal of General Virology header logo Journal of General Virology

Volume 106, Issue 3

ICTV Virus Taxonomy Profile: 2025 Open Access

This article is part of the ICTV Virus Taxonomy Profiles collection.

Abstract

Viruses assigned to the realm have linear, dsDNA genomes in which the DNA is structured in the A-form rather than the usual B-form. Virions are flexible or rigid filaments, with or without envelopes. Adnavirians share homologous major capsid proteins (MCPs) with a distinct -helical structural fold not observed in other known viruses. The MCPs form homodimeric or heterodimeric capsomers that wrap around and condense the genomic dsDNA into helically symmetrical virions. Adnavirians infect hyperthermophilic, thermoacidophilic and methanotrophic archaea. This is a summary of the International Committee on Taxonomy of Viruses Report on the realm , which is available at ictv.global/report/adnaviria.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Adnaviria , ICTV Report , Lipothrixviridae , Rudiviridae , taxonomy and viruses of archaea
Funding
This study was supported by the:
  • Division of Intramural Research, National Institute of Allergy and Infectious Diseases (Award HHSN272201800013C)
    • Principal Award Recipient: JensH. Kuhn
© Microbiology Society
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License
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/content/journal/jgv/10.1099/jgv.0.002091
2025-03-26
2026-04-14

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ICTV Virus Taxonomy Profile: Adnaviria 2025
J. Gen. Virol. 106, 002091 (2025); https://doi.org/10.1099/jgv.0.002091
/content/journal/jgv/10.1099/jgv.0.002091
/content/journal/jgv/10.1099/jgv.0.002091
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