Enterobacteria phage P4
| Enterobacteria phage P4 | |
|---|---|
| Virus classification | |
| Group: | Group I (dsDNA) |
| Order: | Caudovirales |
| Family: | Myoviridae |
| Genus: | P2-like viruses |
| Species: | Enterobacteria phage P4 |
Enterobacteria phage P4 (also known as satellite phage P4) is a temperate bacteriophage of the family Myoviridae.[1] It is a satellite virus, requiring P2-related helper phage to grow lytically.
Structure
The P4 virion has a tail and an icosohedral head containing a linear double-stranded DNA genome of 11,627 kb.[2][3]
Life cycle
Phage 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
- ↑ 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. 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 J-M, Abergel C (2009). "Mimivirus and its Virophage". Annual Review of Genetics 43: 49–66. doi:10.1146/annurev-genet-102108-134255 – via Annual Reviews. (subscription required (help)).
- ↑ 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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