Mavirus
| Mavirus | |
|---|---|
| File:Giant virus CroV with its virophage Mavirus.png | |
| The virophage Mavirus (lower left) with its associated giant virus CroV [1] | |
| Virus classification Edit this classification | |
| (unranked): | Virus |
| Realm: | Varidnaviria |
| Kingdom: | Bamfordvirae |
| Phylum: | Preplasmiviricota |
| Class: | Virophaviricetes |
| Order: | Lavidavirales |
| Family: | Maviroviridae |
| Genus: | Mavirus |
| Species: | Mavirus cafeteriae
|
Mavirus is a genus of double stranded DNA virus that can infect the marine phagotrophic flagellate Cafeteria roenbergensis, but only in the presence of the giant CroV virus (Cafeteria roenbergensis).[2] The genus contains only one species: Mavirus cafeteriae. Mavirus can integrate into the genome of cells of C. roenbergensis, and thereby confer immunity to the population [3]
The name is derived from Maverick virus.
The virophage was discovered by Matthias G. Fischer of the University of British Columbia while he was working on Cafeteria roenbergensis virus as part of his PhD.
Virology
[edit | edit source]The genome is 19,063 bases long and encodes 20 predicted coding sequences. Seven have homology to the Maverick/Polinton family of transposons.[2]
The genome encodes a retroviral integrase, an adenosine triphosphatase (ATPase), a cysteine protease[1] and a protein primed DNA polymerase B.[2]
Classification
[edit | edit source]Mavirus is the sole genus in the family Maviroviridae, which is the sole family in the order Lavidavirales.[4] Lavidavirales is in the class Virophaviricetes, which contains all virophages.[5]
References
[edit | edit source]- ^ a b Duponchel, S. and Fischer, M.G. (2019) "Viva lavidaviruses! Five features of virophages that parasitize giant DNA viruses". PLoS pathogens, 15(3). Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).. File:CC-BY icon.svg Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License.
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