Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D030121
http://purl.bioontology.org/ontology/MESH/D030121
Preferred Name

Betaretrovirus

Definitions
Previously a genus of the family RETROVIRIDAE consisting of oncogenic exogenous retroviruses that contain type D particles. It included the MASON-PFIZER MONKEY VIRUS. Now it represents one of the two kinds of viruses in the genus BETARETROVIRUS. The core of the type D viruses is the intracytoplasmic type A particle and its mechanism of budding from the cell membrane is similar to the type B oncoviruses. A genus of the family RETROVIRIDAE consisting of viruses with either type B or type D morphology. This includes a few exogenous, vertically transmitted and endogenous viruses of mice (type B) and some primate and sheep viruses (type D). MAMMARY TUMOR VIRUS, MOUSE is the type species. Previously a genus of the family RETROVIRIDAE consisting primarily of a few exogenous, vertically transmitted and endogenous viruses of mice. Now it represents one of the two kinds of viruses in the genus BETARETROVIRUS.
Synonyms
Type D Retroviruses
Betaretroviruses
Retroviruses, Type D
Retroviruses Type D
Type D Oncornaviruses
Retrovirus, Type D
Oncornavirus, Type D
Oncoviruses, Type B
Type B Retroviruses, Mammalian
Oncoviruses, Type D
Oncoviruses Type B, Mammalian
Type D Oncovirus
Type B Oncoviruses
Type B, Oncoviruses
Oncovirus, Type B
Oncoviruses Type B
Oncornaviruses, Type D
Type B Oncovirus
Oncovirus, Type D
Retroviruses Type B, Mammalian
Type D Oncornavirus
Type D Oncoviruses
Fibroblast Virus, Human, Permanent
Type B Oncoviruses, Mammalian
Mammalian Type B Retroviruses
Type D Retrovirus
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Type http://www.w3.org/2002/07/owl#Class
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