Escherichia virus T4
| Bacteriophage T4 | |
|---|---|
| T4 phage (EM of virion) | |
| Virus classification | |
| (unranked): | Virus | 
| Realm: | Duplodnaviria | 
| Kingdom: | Heunggongvirae | 
| Phylum: | Uroviricota | 
| Class: | Caudoviricetes | 
| Order: | Pantevenvirales | 
| Family: | Straboviridae | 
| Genus: | Tequatrovirus | 
| Species: | Tequatrovirus T4 | 
| Strains | |
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| Synonyms | |
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Escherichia virus T4 is a species of bacteriophages that infect Escherichia coli bacteria. It is a double-stranded DNA virus in the subfamily Tevenvirinae of the family Straboviridae. T4 is capable of undergoing only a lytic life cycle and not the lysogenic life cycle. The species was formerly named T-even bacteriophage, a name which also encompasses, among other strains (or isolates), Enterobacteria phage T2, Enterobacteria phage T4 and Enterobacteria phage T6.