Non-enveloped, head-tail structure. The icosahedral head is about 60 nm in diameter. The non-contractile tail is about 250 nm in length. h4. GENOME

Linear, dsDNA genome of about 41 kb, containing about 69 genes.




  1. Adsorption: The phage attaches to target cell adhesion receptors through its tail fibers.
  2. Ejection of the viral DNA into host cell cytoplasm by long flexible tail ejection system.
  3. Transcription and translation of early genes.
  4. Replication of genomic DNA.
  5. Transcription and translation of late genes
  6. Assembly of an empty procapsid and packaging of the genome.
  7. Viral tail fibers assembly and viral tail assembly.
  8. Mature virions are released from the cell by lysis.

Matching UniProtKB/Swiss-Prot entries

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Staphylococcus phage phi13 (Bacteriophage phi-13) reference strain

SAK_BPPHD Staphylokinase