Epsilon15likevirus

Epsilon15likevirus is a genus of viruses in the order Caudovirales, in the family Podoviridae. Bacteria serve as natural hosts. There are currently only two species in this genus, including the type species Epsilon 15.[1][2] These phages are temperate and infect Salmonella (Salmonella phage epsilon15) and Escherichia coli (Escherichia phage PhiV10).

Epsilon15likevirus
Virus classification
Group:
Group I (dsDNA)
Order:
Caudovirales
Family:
Podoviridae
Genus:
Epsilon15likevirus
Type species
Salmonella phage epsilon15
Synonyms
  • Epsilon15-like viruses

Taxonomy

Group: dsDNA

[2]

Structure

Viruses in Epsilon15likevirus are non-enveloped, with icosahedral and Head-tail geometries, and T=7 symmetry. The diameter is around 70 nm with a short tail of about 15 nm and tailspikes surrounding an external tail hub.[1] The genomes of these phages are linear double stranded DNA (~40kilobases), terminally redundant and circularly permuted. Transcriptional units separate the genome in an early and a late region, one on the negative strand (regulation and recombination) and the one on the positive strand (packaging, morphogenesis, lysis and integration).[3] Genomes are around 40kb in length.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
Epsilon15likevirusHead-TailT=7Non-envelopedLinearMonopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by adsorption into the host cell. Dna templated transcription is the method of transcription. Bacteria serve as the natural host. Transmission routes are passive diffusion. [1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
Epsilon15likevirusBacteriaNoneInjectionLysisCytoplasmCytoplasmPassive diffusion

References
  1. "Viral Zone". ExPASy. Retrieved 1 July 2015.
  2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 1 July 2015.
  3. Lavigne, R.; Seto, D.; Mahadevan, P.; Ackermann, H. W.; Kropinski, A. M. (2008). "Unifying classical and molecular taxonomic classification: analysis of the Podoviridae using BLASTP-based tools". Research in Microbiology. 159 (5): 406–14. doi:10.1016/j.resmic.2008.03.005. PMID 18555669.

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