| Pbunavirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | Duplodnaviria |
| Kingdom: | Heunggongvirae |
| Phylum: | Uroviricota |
| Class: | Caudoviricetes |
| Order: | Caudovirales |
| Family: | Myoviridae |
| Genus: | Pbunavirus |
Pbunavirus (synonyms: Pb1likevirus, Pbunalikevirus) is a genus of viruses in the order Caudovirales , in the family Myoviridae . Bacteria serve as natural hosts. There are 27 species in this genus. [1] [2] [3]
The following species are recognized: [2]
Pbunaviruses are nonenveloped, with a head and tail. The head has a diameter of about 75 nm. The tail is around 140 nm long displaying a criss-cross pattern, has a small baseplate, and is contractile. [1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Pbunavirus | Head-Tail | Non-enveloped | Linear | Monopartite |
Genomes are linear, around 65-75kb in length. The genome codes for 90 to 130 proteins. [1] Some species have been fully sequenced and are available from ICTV. They range between 64k and 73k nucleotides, with 88 to 127 proteins. The complete genomes are available from here. [3]
Viral replication is cytoplasmic. The virus attaches to the host cell using its terminal fibers, and ejects the viral DNA into the host cytoplasm via contraction of its tail sheath. DNA-templated transcription is the method of transcription. Once the viral genes have been replicated, the procapsid is assembled and packed. The tail is then assembled and the mature virions are released via lysis. Bacteria serve as the natural host. Transmission routes are passive diffusion. [1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Pbunavirus | Bacteria | None | Injection | Lysis | Cytoplasm | Cytoplasm | Passive diffusion |
According to the ICTV's 2010–11 report, the genus Pb1likevirus was first accepted as a new genus, at the same time as all of its contained species. This proposal is available here. The following year (2012), the name was changed to Pbunalikevirus. This proposal is available here. [2] The genus was later renamed to Pbunavirus.
Bruynoghevirus is a genus of viruses in the order Caudovirales, in the family Podoviridae. Bacteria serve as natural hosts. There are seven species in this genus.
Hpunavirus is a genus of viruses in the family Myoviridae, within the subfamily Peduovirinae. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are two species in this genus.
Peduovirus is a genus of viruses in the order Caudovirales, in the family Myoviridae, in the subfamily Peduovirinae. Bacteria serve as natural hosts, with transmission achieved through passive diffusion. There are 15 species in this genus.
Schizotequatrovirus is a genus of viruses in the order Caudovirales, in the family Myoviridae, in the subfamily Tevenvirinae. Bacteria serve as natural hosts. There are three species in this genus.
Tequatrovirus is a genus of viruses in the order Caudovirales, in the family Myoviridae, in the subfamily Tevenvirinae. Gram-negative bacteria serve as the natural host, with transmission achieved through passive diffusion. There are 75 species in this genus.
Felixounavirus is a genus of viruses in the order Caudovirales, in the family Myoviridae. Bacteria serve as natural hosts, with transmission achieved through passive diffusion. There are currently 16 species in this genus, including the type species Salmonella virus FelixO1.
Hapunavirus is a genus of viruses in the family Myoviridae, not assigned to a subfamily. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are two species in this genus.
Bixzunavirus is a genus of viruses in the order Caudovirales, in the family Myoviridae. Bacteria serve as natural hosts, with transmission achieved through passive diffusion. There are eight species in this genus.
Lubbockvirus is a genus of viruses in the family Myoviridae, not assigned to a subfamily. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are two species in this genus.
Myohalovirus is a genus of viruses in the order Caudovirales, in the family Myoviridae. Bacteria and archaea serve as natural hosts. There are three species in this genus.
Phikzvirus is a genus of viruses in the order Caudovirales, in the family Myoviridae. Bacteria serve as natural hosts. There are three species in this genus.
Teseptimavirus is a genus of viruses in the order Caudovirales, in the family Autographiviridae, in the subfamily Studiervirinae. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are currently 17 species in this genus, including the type species Escherichia virus T7.
Salasvirus is a genus of viruses in the order Caudovirales, in the family Salasmaviridae, in the subfamily Picovirinae. Bacteria serve as natural hosts. There are four species in this genus.
Lederbergvirus is a genus of virusesin the order Caudovirales, in the family Podoviridae. Bacteria serve as natural hosts, with transmission achieved through passive diffusion. There are six species in this genus.
Ceduovirus is a genus of viruses in the family Siphoviridae, unassigned to a sub-family. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are 34 species in this genus.
Fromanvirus is a genus of viruses in the order Caudovirales, in the family Siphoviridae. Bacteria serve as natural hosts, with transmission achieved through passive diffusion. There are 59 species in this genus.
Ravinvirus is a genus of viruses in the order Caudovirales, in the family Siphoviridae. Bacteria serve as natural hosts, with transmission achieved through passive diffusion. There is only one species in this genus: Escherichia virus N15.
Lomovskayavirus is a genus of viruses in the order Caudovirales, in the family Siphoviridae. Bacteria serve as natural hosts. There are two species in this genus.
Spbetavirus is a genus of viruses in the order Caudovirales, in the family Siphoviridae. Bacteria serve as natural hosts. There is only one species in this genus: Bacillus virus SPbeta.
Tequintavirus is a genus of viruses in the order Caudovirales, in the family Demerecviridae. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are currently 22 species in this genus, including the type species Escherichia virus T5.