Embecovirus
| Embecovirus | |
|---|---|
| File:109239.fig.001abcd.png | |
| Murine coronavirus (MHV) virion electron micrograph, schematic structure, and genome. | |
| Virus classification Edit this classification | |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Pisuviricota |
| Class: | Pisoniviricetes |
| Order: | Nidovirales |
| Family: | Coronaviridae |
| Genus: | Betacoronavirus |
| Subgenus: | Embecovirus |
Embecovirus is a subgenus of coronaviruses in the genus Betacoronavirus.[1] The viruses in this subgenus, unlike other coronaviruses, have a hemagglutinin esterase (HE) gene.[2] The viruses in the subgenus were previously known as group 2a coronaviruses.[3][4]
Taxonomy
[edit | edit source]The subgenus contains the following species, listed by scientific name and followed by the exemplar virus of the species:[5][6]
- Betacoronavirus gravedinis, Human coronavirus OC43
- Betacoronavirus hongkongense, Human coronavirus HKU1
- Betacoronavirus muris, Murine hepatitis virus
- Betacoronavirus myodae, Myodes rufocanus vole coronavirus 2/JL2014
- Betacoronavirus ratti, Betacoronavirus HKU24
Structure
[edit | edit source]The viruses of this subgenus, like other coronaviruses, have a lipid bilayer envelope in which the membrane (M), envelope (E) and spike (S) structural proteins are anchored.[7] Unlike other coronaviruses, viruses in this subgenus also have an additional shorter spike-like structural protein called hemagglutinin esterase (HE).[2][8]
Recombination
[edit | edit source]Genetic recombination can occur when two or more viral genomes are present in the same host cell. The dromedary camel beta-coronavirus (Beta-CoV HKU23) exhibits genetic diversity in the African camel population.[9] Contributing to this diversity are several recombination events that had taken place in the past between closely related Beta-CoVs of the subgenus Embecovirus.[9]
See also
[edit | edit source]- Sarbecovirus (group 2b)
- Merbecovirus (group 2c)
- Nobecovirus (group 2d)
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Diversity of Dromedary Camel Coronavirus HKU23 in African Camels Revealed Multiple Recombination Events among Closely Related Betacoronaviruses of the Subgenus Embecovirus. So RTY, et al. J Virol. 2019. PMID 31534035
Lua error in Module:Taxonbar at line 165: attempt to index field 'wikibase' (a nil value).