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Siphoviridae: Wikis


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Virus classification
Group: Group I (dsDNA)
Order: Caudovirales
Family: Siphoviridae

λ-like viruses
T1-like viruses
T5-like viruses
c2-like viruses
L5-like viruses
ψM1-like viruses
φC31-like viruses
N15-like viruses

Siphoviridae are a family of double-stranded DNA viruses infecting only bacteria that are characterized by a long non-contractile tail and an isometric capsid (morphotype B1) or a prolate capsid (morphotype B2).

The Siphoviridae viruses have a capsid with a diameter of about 55-60 nm and a long tail that can reach up to 570 nm. Their double-stranded DNA is linear. This family includes the phage λ, the phage χ and the phage φ80.

The following genera are included here:

  • Genus λ-like viruses; type species: Enterobacteria phage λ
  • Genus T1-like viruses; type species: Enterobacteria phage T1
  • Genus T5-like viruses; type species: Enterobacteria phage T5
  • Genus c2-like viruses; type species: Lactococcus phage c2
  • Genus L5-like viruses; type species: Mycobacterium phage L5
  • Genus ψM1-like viruses; type species: Methanobacterium ψM1
  • Genus φC31-like viruses; type species: Streptomyces phage φC31
  • Genus N15-like viruses; type species: Enterobacteria phage N15

External links



Up to date as of January 23, 2010

From Wikispecies


Main Page
Regnum: Virus
Phylum: not divided
Classis: not divided
Ordo: Caudovirales
Familia: Siphoviridae
Genera: c2-like viruses - L5-like viruses - N15-like viruses - T1-like viruses - T5-like viruses - λ-like viruses - ΨM1-like viruses - ΦC31-like viruses




  • Lubbers, M.W., Waterfield, N.R., Beresford, T.P.J., Le Page, R.W.F. & Jarvis, A.W. 1995: Sequencing and analysis of the prolate-headed lactococcal bacteriophage c2 genome and identification of the structural genes. Appl. Environ. Microbiol., 61: 4348-4356.
  • Ravin, V., Ravin, N., Casjens, S., Ford, M., Hatfull, G. & Hendrix, R. 2000: Genomic sequence and analysis of the atypical temperate bacteriophage N15. J. Mol. Biol., 299: 53-73.
  • Smith, M.C.M., Burns, R.N., Wilson, S.E. & Gregory, M.A. 1999: The complete genome sequence of the Streptomyces temperate phage ϕC31: evolutionary relationships to other viruses. Nuc. Acids Res., 27: 2145-2155.
  • Ackermann, H.-W. & DuBow, M.S. (eds)1987: Viruses of Prokaryotes, Vol. I and II. CRC Press, Boca Raton, Florida.

Vernacular names

English: Bacteriophages
中文: 長尾噬菌體科


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