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.

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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

• Virus classification
• RNA virus
• Viroids

References

""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.