Non-enveloped, head-tail structure. The head is about 60 nm in diameter. The tail is flexible, about 140 nm in length and 8 nm in width, with short brush-like terminal fibers.


Linear, dsDNA genome of about 46 kb with covalently closed hairpin ends, encoding about 60 proteins. The genome has cohesive ends (cos sites) .




  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. Genome circularization
  4. Protelomerase cuts at another site, giving rise to a linear plasmid
  5. Transcription and translation of early genes.
  6. Replication of genomic DNA by dsDNA bidirectional replication.
  7. Transcription and translation of late genes
  8. Assembly of an empty procapsid and packaging of the genome.
  9. Viral tail fiber assembly and viral tail assembly.
  10. Mature virions are released from the cell by lysis.

Matching UniProtKB/Swiss-Prot entries

15 entries grouped by strain (browse by keywords)

15 entries

Escherichia phage N15 (Bacteriophage N15) reference strain

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CAPSD_BPN15Major capsid protein (Gene product 8) (gp8) (Major head protein)
COMPL_BPN15Tail completion protein (Gene product 11) (gp11) (Tail connector protein) (Tail ...
DECO7_BPN15Putative decoration protein (Gene product 7) (gp7)
FII_BPN15Head-tail joining protein (Gene product 10) (gp10)
GT_BPN15Tail assembly protein GT (Gene product 15) (gp15) (Gene product GT) (gpGT) ...
G_BPN15Tail assembly protein G (Gene product 14) (gp14) (Minor tail protein G) (Tail ...
LYS_BPN15Lysozyme (EC (Endolysin) (Lysis protein) (Muramidase) (Protein gp54)
PORTL_BPN15Probable portal protein
TIPI_BPN15Tail tip assembly protein I (Gene product 20) (gp20)
TIPK_BPN15Tail tip assembly protein K (Gene product 19) (gp19) (Probable endopeptidase) ...
TIPL_BPN15Tail tip protein L (Gene product 18) (gp18)
TIPM_BPN15Tail tip protein M (Gene product 17) (gp17)
TMP_BPN15Probable tape measure protein (TMP) (Gene product 16) (gp16)
TTTP_BPN15Tail tube terminator protein (TrP) (Gene product 12) (gp12) (Tail-to-head ...
VG55_BPN15Protein gp55