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Gyrovirus
''Gyrovirus'' is a genus of viruses, in the family ''Anelloviridae''. Until 2011, chicken anemia virus was the only Gyrovirus identified, but since then gyroviruses have also been identified in humans. Diseases associated with this genus include: chicken infectious anemia, which is associated with depletion of cortical thymocytes and erythroblastoid cells. Taxonomy The genus contains the following species: * ''Chicken anemia virus'' * '' Gyrovirus fulga1'' * '' Gyrovirus galga1'' * '' Gyrovirus galga2'' * '' Gyrovirus homsa1'' * ''Gyrovirus homsa2'' * ''Gyrovirus homsa3'' * ''Gyrovirus homsa4'' * ''Gyrovirus hydho1'' * ''Gyrovirus myferr1'' Structure Gyroviruses have an average size of 19 to 27 nanometers. They are nonenveloped and have an icosahedral capsid with T=1 symmetry. The unique, single protein, trumpet-shaped capsomeres of ''Gyrovirus'' are arranged into 12 pentomers yielding a capsid 60 units in size. The genome is circular, non-segmented, and 2290–2320 nucleotide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrovirus Homsa2
''Gyrovirus'' is a genus of viruses A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1 ..., in the family '' Anelloviridae''. Until 2011, chicken anemia virus was the only Gyrovirus identified, but since then gyroviruses have also been identified in humans. Diseases associated with this genus include: chicken infectious anemia, which is associated with depletion of cortical thymocytes and erythroblastoid cells. Taxonomy The genus contains the following species: * '' Chicken anemia virus'' * '' Gyrovirus fulga1'' * '' Gyrovirus galga1'' * '' Gyrovirus galga2'' * '' Gyrovirus homsa1'' * '' Gyrovirus homsa2'' * '' Gyrovirus homsa3'' * '' Gyrovirus homsa4'' * '' Gyrovirus hydho1'' * '' Gyrovirus myferr1'' Structure Gyroviruses have an average size of 19 to 27 nanometers. They are none ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyrovirus Homsa3
''Gyrovirus'' is a genus of viruses, in the family '' Anelloviridae''. Until 2011, chicken anemia virus was the only Gyrovirus identified, but since then gyroviruses have also been identified in humans. Diseases associated with this genus include: chicken infectious anemia, which is associated with depletion of cortical thymocytes and erythroblastoid cells. Taxonomy The genus contains the following species: * '' Chicken anemia virus'' * '' Gyrovirus fulga1'' * '' Gyrovirus galga1'' * '' Gyrovirus galga2'' * '' Gyrovirus homsa1'' * ''Gyrovirus homsa2 ''Gyrovirus'' is a genus of viruses A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria ...'' * '' Gyrovirus homsa3'' * '' Gyrovirus homsa4'' * '' Gyrovirus hydho1'' * '' Gyrovirus myferr1'' Structure Gyroviruses have an average size of 19 to 27 nanometers. They are nonen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicken Anemia Virus
''Chicken anemia virus'', or CAV, is currently a member of the '' Anelloviridae'' family which is found worldwide. The virus only affects chickens. CAV is a non-enveloped icosahedral single stranded DNA virus, which causes bone marrow atrophy, anemia, and severe immunosuppression. Clinical signs of CAV infection are predominantly found in young chicks due to vertical transmission from the breeder hens whose maternal antibodies have not yet formed following exposure. Clinical disease is rare today because of the widespread practice of vaccinating breeders, but the subclinical form of the disease—which normally affects birds more than two weeks of age following horizontal transmission of the virus via the fecal–oral route—is ubiquitous. The virus is very resistant in the environment, making elimination very difficult. The disease and virus have many names including chicken anemia, blue wing disease, anemia dermatitis syndrome, chicken/avian infectious anemia, hemorrhagic apla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anelloviridae
''Anelloviridae'' is a family of viruses. They are classified as vertebrate viruses and have a non-enveloped capsid, which is round with isometric, icosahedral symmetry and has a triangulation number of 3. The name is derived from Italian ''anello'' 'ring', referring to the circular genome of anelloviruses. Genome The genome is not segmented and contains a single molecule of circular, negative-sense, single-stranded DNA. The complete genome is 3000–4000 nucleotides long. They also contain a non-coding region with one to two 80–110 nt sequences that contain high GC content, forming a secondary structure of stems and loops. The genome has ORFs and a high degree of genetic diversity. Although the mechanism of replication has not been studied heavily, anelloviridae appears to use the rolling circle mechanism where first ssDNA is converted to dsDNA. It requires a host polymerase for replication to occur as the genome itself does not encode for a viral polymerase and, as a re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
