Yualikevirus

Yualikevirus
Virus classification
Group: Group I (dsDNA)
Order: Caudovirales
Family: Siphoviridae
Subfamily: Unassigned
Genus: Yualikevirus
Type species
Pseudomonas phage Yua

Yualikevirus is a genus of viruses in the family Siphoviridae, unassigned to a sub-family. Bacteria serve as the natural host, with transmission achieved through passive diffusion. There are currently three species in this genus, including the type species Pseudomonas phage Yua.[1][2][3]

Taxonomy

Species:

  • Phage phiJl001
  • Pseudomonas phage M6
  • Pseudomonas phage Yua (type species)

Structure

Yualikeviruses are nonenveloped, with a head and tail. The head is a prolate spheroid about 72 nm by 51 nm. The tail is about 145 nm long.[1]

Taxonomy Structure Symmetry Capsid Genomic Arrangement Genomic Segmentation
Group I >
Caudovirales >
Siphoviridae >
Yualikevirus		Head-TailT=7Non-EnvelopedLinearMonopartite

Genome

All three species have been fully sequenced. They range between 58-64k nucleotides, with 77-90 proteins. The complete genomes are available here.[3]

Life cycle

The virus attaches to the host cell using its terminal fibers, and ejects the viral DNA into the host periplasm. The DNA genome is circularized or integrate into the host's chromosome before transcription and translation. Once the viral genes have been replicated, the new virions are assembled in the cytoplasm. Finally, the mature virions are released via lysis.[1]

Taxonomy Host Details Tissue Tropism Entry Details Release Details Replication Site Assembly Site Transmission
Group I >
Caudovirales >
Siphoviridae >
Yualikevirus		BacteriaNoneInjectionLysisCytoplasmCytoplasmPassive diffusion

History

According to ICTV's 2012 report, the genus was accepted under the name Yualikevirus, assigned to family Siphoviridae, order Caudovirales.[2]

References

  1. 1 2 3 "Viral Zone". http://viralzone.expasy.org/viralzone/all_by_species/4737.html. ExPASy. External link in |website= (help);
  2. 1 2 ICTV. "Virus Taxonomy: 2014 Release". Retrieved 11 March 2015.
  3. 1 2 NCBI. "Yualikevirus Complete Genomes". Retrieved 11 March 2015.
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