A DNA tumour virus with very small genome (of the Papovaviridae). Polyoma was isolated from mice, in which it causes no obvious disease, but when injected at high titre into baby rodents, including mice, causes tumours of a wide variety of histological types (hence poly-oma). In vitro , infected mouse cells are permissive for virus replication, and thus are killed, whilst hamster cells undergo abortive infection, and at a low frequency become transformed.
<virology> A papovavirus (genus Polyomavirus, family Papovaviridae) which is a DNA tumour virus with very small genome. ... Polyoma was isolated from mice, in which it causes no obvious disease, but when injected at high titre into baby rodents, including mice, it causes tumours of a wide variety of histological types (hence polyoma). ... In ...Found on http://www.encyclo.co.uk/local/20973
(pol″e-o´mә-vi″rәs) any virus of the genus Polyomavirus.Found on http://www.encyclo.co.uk/local/21001
(pol″e-o´mә-vi″rәs) a genus of viruses of the family Papovaviridae that induce tumors in experimental animals. Two of them, BK virus and JC virus, infect humansFound on http://www.encyclo.co.uk/local/21001
any of a subgroup of minute oncogenic DNA viruses of the family Papovaviridae.[3 related articles]Found on http://www.britannica.com/eb/a-z/p/90
Type: Term Pronunciation: pol′ē-ō′mă-vī′rŭs Definitions: 1. A genus of viruses (family Papovaviridae) containing DNA (MW 3 ׀ 106), having virions about 45 nm in diameter, and including viruses oncogenic for animals; includes the polyoma virus of rodents, vacuolating viruses (SV40) of primates, and th...Found on http://www.medilexicon.com/medicaldictionary.php?t=70987
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