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.

Additional recommended knowledge

Essential Laboratory Skills Guide

Weighing the right way

What is the Correct Way to Check Repeatability in Balances?

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.