| 词条 | Pasivirus | ||||||||||||||||||||||||||||
| 释义 |
| virus_group = iv | ordo = Picornavirales | familia = Picornaviridae | genus = Pasivirus | subdivision_ranks = Type Species | subdivision =
}}Pasivirus is a genus of viruses in the order Picornavirales, in the family Picornaviridae. Pigs serve as natural hosts. There is currently only one species in this genus: the type species Pasivirus A.[1][2] TaxonomyGroup: ssRNA(+){{Collapsible list|title= Order: Picornavirales|1={{Collapsible list| framestyle=border:none; padding:1.0em;|title=Family: Picornaviridae |1={{hidden begin|title=Genus: Pasivirus}}
}} }}[2] StructureViruses in Pasivirus are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7.3kb in length.[1]
Life cycleViral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Translation takes place by ribosomal skipping. The virus exits the host cell by lysis, and viroporins. Pigs serve as the natural host.[1]
References1. ^1 2 {{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/4805.html|publisher=ExPASy|accessdate=13 August 2015}} 2. ^1 {{cite web|last1=ICTV|title=Virus Taxonomy: 2014 Release|url=http://ictvonline.org/virusTaxonomy.asp|accessdate=13 August 2015}} External links
1 : Picornaviridae |
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