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− | CAV-1 is a member of the [[Adenoviridae - Overview]] family, a group double-stranded DNA viruses with an icosahedral nucleocapsid. Many Adenoviridae have been isolated from mammals and birds, but only a small number of these cause significant veterinary disease. The family consists of four genera: Mastadenovirus, Aviadenovirus, Atadenovirus and Siadenovirus. Canine adenovirus 1 is a Mastadenovirus.
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| + | [[Adenoviridae]] are a group of double-stranded DNA viruses with an icosahedral nucleocapsid. Many Adenoviridae have been isolated from mammals and birds, but only a small number of these cause significant veterinary disease. The family consists of four genera: Mastadenovirus, Aviadenovirus, Atadenovirus and Siadenovirus. [[Canine Adenovirus 1|Canine adenovirus 1]] is a Mastadenovirus. |
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| ==Viral Characteristics== | | ==Viral Characteristics== |
− | The genetic information of CAV-1, like other Adenoviridae, is conveyed by a single, linear molecule of double-stranded DNA which encodes around 30 proteins. Under the influence of both host and virus-encoded factors, the DNA replicates and is transcribed within the host nucleus, where virion assembly also occurs. Basophilic and/or acidophilic inclusions may therefore be seen in the nucleus of an adenovirus-infected cell. | + | The genetic information of Adenoviridae is conveyed by a single, linear molecule of double-stranded DNA which encodes around 30 proteins. Under the influence of both host and virus-encoded factors, the DNA replicates and is transcribed within the host nucleus, where virion assembly also occurs. Basophilic and/or acidophilic inclusions may therefore be seen in the nucleus of an adenovirus-infected cell. |
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| + | The virus genome is contained within a non-enveloped icosohedral nucleocapsid, which comprises capsomeres (called hexons) and twelve vertex capsomeres (called pentons). A fibre antigen protrudes from each of the twelve pentons, and this attaches to host cell receptors as well as being a type-specific haemagglutinin. This fibre antigen is a feature specific to the Adenoviridae. The hexon of mammalian adenoviruses contains a cross-reacting group antigen. |
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| + | ===Introduction=== |
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| + | ===Morphology=== |
| + | *Stable, non-enveloped, resistant |
| + | *Icosahedral virus: |
| + | **Capsomeres at apices (12) carry a peripheral fiber with a terminal knob |
| + | **Capsomeres on facets (240) do not |
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− | The virus genome is contained within a non-enveloped icosohedral nucleocapsid, which comprises capsomeres (called hexons) and twelve vertex capsomeres (called pentons). A fibre antigen protrudes from each of the twelve pentons, and this attaches to host cell receptors as well as being a type-specific haemagglutinin. This fibre antigen is a feature specific to the Adenoviridae. The hexon of mammalian adenoviruses contains a cross-reacting group antigen.
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− | [[Category:Adenoviridae]] | + | [[Category:Adenoviridae]][[To Do - Lizzie]] |