|
Anellovirus
''Anelloviridae'' is a Family (biology), 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. It is the sole representative of its own phylum, ''Commensaviricota'' (from its "commensal" lifestyle in the human virome + wikt:-viricota, -viricota). Genome The genome is not segmented and contains a single molecule of cccDNA, 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 Open reading frame, ORFs and a high degree of genetic diversity. Although the mechanism of replication has not been studied heavily, anelloviridae appears to use th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gammatorquevirus
''Gammatorquevirus'' is a genus of viruses in the family ''Anelloviridae'', in group DNA virus#Group II: ssDNA viruses, II in the Baltimore classification. It contains 15 species. The fifteen species are all commonly called "torque teno midi virus" (TTMDV), number 1–15. Taxonomy The genus contains the following species: * ''Gammatorquevirus homidi1'' * ''Gammatorquevirus homidi2'' * ''Gammatorquevirus homidi3'' * ''Gammatorquevirus homidi4'' * ''Gammatorquevirus homidi5'' * ''Gammatorquevirus homidi6'' * ''Gammatorquevirus homidi7'' * ''Gammatorquevirus homidi8'' * ''Gammatorquevirus homidi9'' * ''Gammatorquevirus homidi10'' * ''Gammatorquevirus homidi11'' * ''Gammatorquevirus homidi12'' * ''Gammatorquevirus homidi13'' * ''Gammatorquevirus homidi14'' * ''Gammatorquevirus homidi15'' Discovery TTMDV, which stands for transfusion transmitted midi virus or torque teno midi virus was first isolated in 2005 from patients with an acute viral infection syndrome. Because of the circ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Betatorquevirus
''Betatorquevirus'' is a genus of viruses in the family ''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 ''ane ...'', in group II in the Baltimore classification. The genus ''Betatorquevirus'' includes all "torque teno mini viruses" (TTMV), numbered from 1 to 38. Taxonomy The genus contains the following species: * ''Betatorquevirus homini1'' * ''Betatorquevirus homini2'' * ''Betatorquevirus homini3'' * ''Betatorquevirus homini4'' * ''Betatorquevirus homini5'' * ''Betatorquevirus homini6'' * ''Betatorquevirus homini7'' * ''Betatorquevirus homini8'' * ''Betatorquevirus homini9'' * ''Betatorquevirus homini10'' * ''Betatorquevirus homini11'' * ''Betatorquevirus homini12'' * ''Betatorquevirus homini13'' * ''Betatorquevirus homini14'' * ''Betatorquevirus homini15'' * ''Betato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Virome
The human virome is the total collection of viruses in and on the human body. Viruses in the human body may infect both human cells and other microbes such as bacteria (as with bacteriophages). Some viruses cause disease, while others may be asymptomatic. Certain viruses are also integrated into the human genome as proviruses or endogenous viral elements. Viruses evolve rapidly and hence the human virome changes constantly. Every human being has a unique virome with a unique balance of species. Lifestyle, age, geographic location, and even the season of the year can affect an individual's exposure to viruses, and one's susceptibility to any disease that might be caused by those viruses is also affected by pre-existing immunity and both viral and human genetics. The human virome is far from being completely explored and new viruses are discovered frequently. Unlike the roughly 40 trillion bacteria in a typical human microbiome, an estimate of the number of viral particles in a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambdatorquevirus
''Lambdatorquevirus'' is a genus of viruses, in the family ''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 ''ane ...''. Sea lions serve as natural hosts. There are five species in this genus. Taxonomy The genus contains the following species: * ''Lambdatorquevirus phoci1'' * ''Lambdatorquevirus phoci2'' * ''Lambdatorquevirus phoci3'' * ''Lambdatorquevirus phoci5'' * ''Lambdatorquevirus phoci6'' Structure Viruses in ''Lambdatorquevirus'' are non-enveloped, with icosahedral geometries, and T=1 symmetry. The diameter is around 19-27 nm. Genomes are circular, around 2.1kb in length. The genome has 2 open reading frames. Life cycle Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kappatorquevirus
''Kappatorquevirus'' is a genus of viruses, in the family ''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 ''ane ...''. Pigs serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: possibly post-weaning multisystemic wasting syndrome (PMWS). Structure Viruses in ''Kappatorquevirus'' are non-enveloped, with icosahedral geometries, and T=1 symmetry. The diameter is around 19-27 nm. Genomes are circular, around 2.7kb in length. The genome codes for 4 proteins, and has 3 open reading frames. Life cycle Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolling circle model. DNA-templated transcription, with some alternative splicing mechani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
