Enterobacteria phage P4 (also known as satellite phage P4) is a temperate bacteriophage strain of species Escherichia virus P2 within genus Peduovirus (formerly P2-like viruses, P2virus, and P2likevirus), subfamily Peduovirinae, family Myoviridae.[1] It is a satellite virus, requiring P2-related helper phage to grow lytically.
| Enterobacteria phage P4 | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Duplodnaviria |
| Kingdom: | Heunggongvirae |
| Phylum: | Uroviricota |
| Class: | Caudoviricetes |
| Family: | Peduoviridae |
| Genus: | Peduovirus |
| Species: | |
| Strain: | Enterobacteria phage P4
|
Structure
editThe P4 virion has a tail and an icosahedral head containing a linear double-stranded DNA genome of 11,627 kb.[2][3]
Life cycle
editPhage P4 infects Escherichia coli. It is a satellite virus which cannot engage in lytic growth without the presence of a P2-related helper phage. It generally follows a lysogenic life cycle: after infection, the P4 genome integrates into that of its host. The P4 genome can also exist on its own within the host cell and can replicate as a free plasmid.[4]
References
edit- ^ Pruss, G; Goldstein, RN; Calendar, R (June 1974). "In vitro packaging of satellite phage P4 DNA". Proceedings of the National Academy of Sciences of the United States of America. 71 (6): 2367–71. Bibcode:1974PNAS...71.2367P. doi:10.1073/pnas.71.6.2367. PMC 388456. PMID 4526304.
- ^ Briani, Federica; Dehò, Gianni; Forti, Francesca; Ghisotti, Daniela (2002). "The Plasmid Status of Satellite Bacteriophage P4". Plasmid. 45 (1): 1–17. doi:10.1006/plas.2000.1497. PMID 11319927.
- ^ Claverie JM, Abergel C (2009). "Mimivirus and its Virophage". Annual Review of Genetics. 43: 49–66. doi:10.1146/annurev-genet-102108-134255. PMID 19653859.
- ^ Christie, GE; Calendar, R (1990). "Interactions between satellite bacteriophage P4 and its helpers". Annual Review of Genetics. 24: 465–90. doi:10.1146/annurev.ge.24.120190.002341. PMID 2088176.
External links
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