Group Group I (dsDNA) | Order Caudovirales Genus P2-like viruses | |
Species Enterobacteria phage P4 Similar Myoviridae, Enterobacteria phage P22, Caudovirales, Bacteriophage T12, HK97 | ||
Enterobacteria phage P4 (also known as satellite phage P4) is a temperate bacteriophage of the family Myoviridae. It is a satellite virus, requiring P2-related helper phage to grow lytically.
Contents
Structure
The P4 virion has a tail and an icosohedral head containing a linear double-stranded DNA genome of 11,627 kb.
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.
References
Enterobacteria phage P4 Wikipedia(Text) CC BY-SA