Non-enveloped, head-tail structure. The icosahedral head is about 50 nm in diameter. The non-contractile tail is about 175 nm in length.


Linear dsDNA genome of 43 kb, containing about 66 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 fiber assembly and viral tail assembly.
  8. Mature virions are released from the cell by lysis.

Matching UniProtKB/Swiss-Prot entries

6 entries grouped by strain (browse by keywords)

All proteins are shown (view only 4 complete proteome entries)

2 entries

Staphylococcus phage phiMR11 reference strain

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CAPSD_BPMR1Major capsid protein (Gene product 44) (gp44) (Major head protein)
TAIL_BPMR1Putative tail protein (Putative uncharacterized protein orf50)

2 entries

Staphylococcus phage phiMR25 reference strain

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CAPSD_BPMR2Putative major capsid protein (Putative major head protein)
TAIL_BPMR2Putative tail protein (Putative major tail protein)

2 entries

Staphylococcus phage phi11 (Bacteriophage phi-11)

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RINA_BPPHATranscriptional activator rinA
RINB_BPPHATranscriptional activator rinB