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DNA virus

A DNA virus is a virus that has DNA as its genetic material and replicates using a DNA-dependent DNA polymerase. The nucleic acid is usually double-stranded DNA (dsDNA) but may also be single-stranded DNA (ssDNA). DNA viruses belong to either Group I or Group II of the Baltimore classification system for viruses. Single-stranded DNA is usually expanded to double-stranded in infected cells. Although Group VII viruses such as hepatitis B contain a DNA genome, they are not considered DNA viruses according to the Baltimore classification, but rather reverse transcribing viruses because they replicate through an RNA intermediate.


Group I - dsDNA viruses

  • Order Caudovirales
    • Family Myoviridae - includes Enterobacteria phage T4
    • Family Podoviridae
    • Family Siphoviridae - includes Enterobacteria phage λ
  • Unassigned families
    • Family Ascoviridae
    • Family Adenoviridae
    • Family Asfarviridae - includes African swine fever virus
    • Family Baculoviridae
    • Family Coccolithoviridae
    • Family Corticoviridae
    • Family Fuselloviridae
    • Family Guttaviridae
    • Family Herpesviridae - includes human herpesviruses, Varicella Zoster virus
    • Family Iridoviridae
    • Family Lipothrixviridae
    • Family Nimaviridae
    • Family Papillomaviridae
    • Family Phycodnaviridae
    • Family Plasmaviridae
    • Family Polyomaviridae - includes Simian virus 40, JC virus
    • Family Poxviridae - includes Cowpox virus, smallpox
    • Family Rudiviridae
    • Family Tectiviridae
  • Unassigned genera
    • Mimivirus

Group II - ssDNA viruses

  • Unassigned bacteriophage families
    • Family Inoviridae
    • Family Microviridae
  • Unassigned families
    • Family Geminiviridae
    • Family Circoviridae
    • Family Nanoviridae
    • Family Parvoviridae - includes Parvovirus B19
  • Unassigned genera
    • Anellovirus

See also


""ICTVdb Index of Viruses: Virus Taxonomy, 8th Reports of the International Committee on Taxonomy of Viruses: Listing in Taxonomic Order." (Website). U.S. National Center for Biotechnology Information, National Library for Medicine, National Institutes of Health. Retrieved on 2007-09-28.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "DNA_virus". A list of authors is available in Wikipedia.
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