Cressdnaviricota
| Cressdnaviricota | |
|---|---|
| |
| Virions of Maize streak virus | |
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Monodnaviria |
| Kingdom: | Shotokuvirae |
| Phylum: | Cressdnaviricota |
| Classes | |
|
See text | |
Cressdnaviricota is a phylum of viruses with small, circular single-stranded DNA genomes and encoding rolling circle replication-initiation proteins with the N-terminal HUH endonuclease and C-terminal superfamily 3 helicase domains.[1][2] While the replication-associated proteins are homologous among viruses within the phylum, the capsid proteins are very diverse and have presumably been acquired from RNA viruses on multiple independent occasions.[3][4][5][6] Nevertheless, all cressdnaviruses for which structural information is available appear to contain the jelly-roll fold.[5][6]
Taxonomy
The following classes are recognized:
- Arfiviricetes
- Repensiviricetes
References
External links
Media related to Cressdnaviricota at Wikimedia Commons
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