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Encyclopedia > DNA viruses

A DNA virus is a virus belonging to either Group I or Group II of the Baltimore classification system for viruses. It will therefore possess DNA as its genetic material and replicate using a DNA-dependent DNA polymerase. The nucleic acid is usually double-stranded DNA (dsDNA) but may also be single-stranded DNA (ssDNA). Single-stranded DNA is usually expanded to double-stranded in infected cells. Groups I: dsDNA viruses II: ssDNA viruses III: dsRNA viruses IV: (+)ssRNA viruses V: (-)ssRNA viruses VI: ssRNA-RT viruses VII: dsDNA-RT viruses A virus (Latin, poison) is a microscopic particle that can infect the cells of a biological organism. ... Viruses can be classified in several ways, such as by their geometry, by whether they have envelopes, by the identity of the host organism they can infect, by mode of transmission, or by the type of disease they cause. ... The general structure of a section of DNA Deoxyribonucleic acid (DNA) is a nucleic acid — usually in the form of a double helix — that contains the genetic instructions or genocode monitoring the biological development of all cellular forms of life, and many viruses. ... Genetic material is the material used to store genetic information for a living organism. ... 3D structure of the DNA-binding helix-hairpin-helix motifs in human DNA polymerase beta A DNA polymerase is an enzyme that assists in DNA replication. ... Schematic diagram of a double-stranded nucleic acid. ...


Group I - dsDNA viruses

Families Myoviridae Podoviridae Siphoviridae The Caudovirales are an order of viruses, comprising the bacteriophages that have tails. ... Genera T4-like viruses P1-like viruses P2-like viruses Mu-like viruses SPO1-like viruses φH-like viruses The Myoviridae are a family of bacteriophages, including the following genera: Genus T4-like viruses; type species: Enterobacteria phage T4, others include Enterobacteria phage T2 Genus P1-like viruses; type species... Enterobacteria phage T4 is a phage that infects E. coli bacteria. ... Genera T7-like viruses φ29-like viruses P22-like viruses N4-like viruses The Podoviridae are a family of bacteriophages, including the following genera: Genus T7-like viruses; type species: Enterobacteria phage T7 Genus φ29-like viruses; type species: Bacillus phage φ29 Genus P22-like viruses; type species: Enterobacteria phage... Genera λ-like viruses T1-like viruses T5-like viruses c2-like viruses L5-like viruses ψM1-like viruses Siphoviridae is a family of double-stranded DNA viruses infecting only bacteria that are characterized by a long non-contractile tail and an isometric capsid (morphotype B1) or a prolate capsid... Enterobacteria phage λ (lambda phage) is a temperate phage that lives in E. coli. ... Genera Aviadenovirus Atadenovirus Mastadenovirus Siadenovirus Adenoviruses are viruses of the family Adenoviridae. ... The baculoviruses are a family of large rod-shaped viruses that can be divided to two genera: nucleopolyhedroviruses (NPV) and granuloviruses (GV). ... Species Emiliania huxleyi virus 86 (EhV-86) Coccolithovirus is a giant double-stranded DNA virus that infects the Emiliania huxleyi species of coccolithophore. ... Genera Subfamily Alphaherpesvirinae    Simplexvirus    Varicellovirus    Mardivirus    Iltovirus Subfamily Betaherpesvirinae    Cytomegalovirus    Muromegalovirus    Roseolovirus Subfamily Gammaherpesvirinae    Lymphocryptovirus    Rhadinovirus Unassigned    Ictalurivirus The Herpesviridae is a family of DNA viruses that cause diseases in humans and animals. ... African swine fever virus (ASFV) is the causative agent of African swine fever. ... Species See text Papillomaviruses are viruses that commonly cause warts. ... Species See text Polyomavirus is the sole genus of viruses within the family Polyomaviridae. ... SV40 is an abbreviation for Simian vacuolating virus 40 or Simian virus 40, a polyomavirus that is found in both monkeys and humans. ... Genera Subfamily Chordopoxvirinae    Orthopoxvirus    Parapoxvirus    Avipoxvirus    Capripoxvirus    Leporipoxvirus    Suipoxvirus    Molluscipoxvirus    Yatapoxvirus Subfamily Entomopoxvirinae    Entomopoxvirus A    Entomopoxvirus B    Entomopoxvirus C Poxviruses (members of the family Poxviridae) can infect as a family both vertebrate and invertebrate animals. ... Cowpox is a disease of the skin caused by a virus (Cowpox virus) that is related to the Vaccinia virus. ... Smallpox (also known by the Latin names Variola or Variola vera) was a highly contagious viral disease unique to humans. ... The mimivirus is a giant double-stranded DNA virus with mature particles of 400 nm in diameter (icosahedral capsid). ...

Group II - ssDNA viruses

A bacteriophage, artificially coloured red A bacteriophage (from bacteria and Greek phagein, to eat) is a virus that infects bacteria. ... Genera Inovirus Plectrovirus The Inoviridae are a family of bacteriophages, including the following genera: Genus Inovirus; type species: Enterobacteria phage M13 Genus Plectrovirus; type species: Acholeplasma phage MV-L51 Categories: Viruses | Virus stubs ... Genera Microvirus Spiromicrovirus Bdellomicrovirus Chlamydiamicrovirus The Microviridae are a family of bacteriophages, including the following genera: Genus Microvirus; type species: Enterobacteria phage φX174 Genus Spiromicrovirus; type species: Spiroplasma phage 4 Genus Bdellomicrovirus; type species: Bdellovibrio phage MAC1 Genus Chlamydiamicrovirus; type species: Chlamydia phage 1 Categories: Viruses | Virus stubs ... Genera Mastrevirus Curtovirus Begomovirus Topocuvirus The Geminiviridae are a family of viruses, including the following genera: Genus Mastrevirus; type species: Maize streak virus Genus Curtovirus; type species: Beet curly top virus Genus Begomovirus; type species: Bean golden mosaic virus Genus Topocuvirus; type species: Tomato pseudo-curly virus Categories: Viruses | Virus... Genera Circovirus Gyrovirus The Circoviridae are a family of viruses, including the following genera: Genus Circovirus; type species: Porcine circovirus Genus Gyrovirus; type species: Chicken anaemia virus Categories: Viruses | Virus stubs ... Genera Nanovirus Babuvirus The Nanoviridae are a family of viruses, including the following genera: Genus Nanovirus; type species: Subterranean clover stunt virus Genus Babuvirus; type species: Banana bunchy top virus Categories: Viruses | Virus stubs ... Genera Subfamily Parvovirinae    Parvovirus    Erythrovirus    Dependovirus Subfamily Densovirinae    Densovirus    Iteravirus    Brevidensovirus The Parvoviridae family includes the smallest known viruses, and some of the most environmentally resistant. ... Parvovirus B19 (B19 virus) was the first (and, until 2005, only) human parvovirus to be discovered, by chance in 1975 by the Australian virologist Yvonne Cossart. ...

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