Non-enveloped, head-tail structure. The icosahedral head is about 80 nm. The tail of about 220 nm in length is contractile.
Linear, dsDNA genome of about 35-40 kb, encoding for about 50 proteins. Bacterial DNA fragments are respectively covalently linked at the left and the right end of the viral genome.
Genes are transcribed by operons.
- Adsorption: the phage attaches to the target cell through its tail fibers.
- Ejection of the viral DNA into host cell cytoplasm by contraction of the tail sheath.
- Transcription and translation of early genes.
- Integration of viral DNA into the host chromosome.
- Replicative transposition gives rise to 50-100 new copies of the viral genome in the host chromosome.
- Transcription and translation of late genes.
- Assembly of an empty procapsid and packaging of the genome.
- Viral tail fibers assembly and viral tail assembly.
- Mature virions are released from the cell by lysis.