Virus classification
Group: Group VI (ssRNA-RT)
Order: Unassigned
Family: Retroviridae
Subfamily: Orthoretrovirinae
Genus: Gammaretrovirus
Type species
Murine leukemia virus

Mammalian virus group

Feline leukemia virus
Gibbon ape leukemia virus
Guinea pig type-C oncovirus
Porcine type-C oncovirus
Murine leukemia virus

Replication defective viruses

Finkel-Biskis-Jinkins murine sarcoma virus
Gardner-Arnstein feline sarcoma virus
Hardy-Zuckerman feline sarcoma virus
Harvey murine sarcoma virus
Kirsten murine sarcoma virus
Moloney murine sarcoma virus
Snyder-Theilen feline sarcoma virus
Woolly monkey sarcoma virus

Reptilian virus group

Viper retrovirus

Avian (Reticuloendotheliosis) virus group

Chick syncytial virus
Reticuloendotheliosis virus
Trager duck spleen necrosis virus

A gammaretrovirus is a genus of the retroviridae family. Example species are the murine leukemia virus and the feline leukemia virus.[1]

Many endogenous retroviruses, closely related to exogenous gammaretroviruses, are present in the DNA of mammals (including humans), birds, reptiles and amphibians.

Many of the Gammaretroviruses share a conserved RNA structural element called a core encapsidation signal.[2] XMRV has been implicated as a possible human gammaretrovirus , but to date, natural human infection remains to be proven.

External links

Wikispecies has information related to: Orthoretrovirinae


  1. Viralzone: Gammaretrovirus
  2. D'Souza V, Dey A, Habib D, Summers MF (2004). "NMR structure of the 101-nucleotide core encapsidation signal of the Moloney murine leukemia virus.". J Mol Biol. 337 (2): 427–42. doi:10.1016/j.jmb.2004.01.037. PMID 15003457.

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