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Contents

   



(Top)
 


1 Structure  





2 Genome  





3 Life cycle  





4 Taxonomy  





5 References  





6 External links  














Emesvirus







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From Wikipedia, the free encyclopedia
 


Emesvirus
Bacteriophage MS2 virion and genome with genes mat, cp, lys, and rep
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Lenarviricota
Class: Leviviricetes
Order: Norzivirales
Family: Fiersviridae
Genus: Emesvirus

Emesvirus is a genus of positive-strand RNA viruses, in the family Fiersviridae. Enterobacteria serve as natural hosts. There are three species in this genus.[1][2] In 2020, the genus was renamed from Levivirus to its current name.[3]

Structure

[edit]

Viruses in Emesvirus are non-enveloped, with icosahedral and Spherical geometries, and T=3 symmetry. The capsid diameter is around 26 nm.[1]

Genome

[edit]

Emesviruses have a positive-sense, single-stranded RNA genome. The genome is linear and non-segmented and around 3.5kb in length. The genome codes for four proteins, which are the coat, replicase, maturation, and lysis protein.[1]

Life cycle

[edit]

Entry into the host cell is achieved by adsorption into the host cell. Replication follows the positive-strand RNA virus replication model. Positive-strand RNA virus transcription is the method of transcription. Translation takes place by suppression of termination. The virus exits the host cell by bacteria lysis. Enterobacteria serve as the natural host.[1]

Taxonomy

[edit]

The genus Emesvirus has the following two species:[2]

References

[edit]
  1. ^ a b c d "Levivirus ~ ViralZone page". viralzone.expasy.org. Retrieved 2 September 2020.
  • ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.
  • ^ "ICTV Taxonomy history: Emesvirus". International Committee on Taxonomy of Viruses (ICTV). Retrieved 16 May 2021.
  • [edit]
    Retrieved from "https://en.wikipedia.org/w/index.php?title=Emesvirus&oldid=1136463897"

    Categories: 
    Virus genera
    Fiersviridae
    Hidden categories: 
    Articles with short description
    Short description matches Wikidata
    Use dmy dates from April 2017
    Articles with 'species' microformats
    Taxonbars desynced from Wikidata
     



    This page was last edited on 30 January 2023, at 12:44 (UTC).

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