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From small hosts come big viruses: the complete genome of a second Ostreococcus tauri virus, OtV-1
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Weynberg, Karen Dawn, Allen, Michael J., Ashelford, Kevin, Scanlan, David J. and Wilson, William H. (2009) From small hosts come big viruses: the complete genome of a second Ostreococcus tauri virus, OtV-1. Environmental Microbiology, Vol.11 (No.11). pp. 2821-2839. doi:10.1111/j.1462-2920.2009.01991.x
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Official URL: http://dx.doi.org/10.1111/j.1462-2920.2009.01991.x
Abstract
Ostreococcus tauri virus (OtV-1) is a large double-stranded DNA virus and a prospective member of the family Phycodnaviridae, genus Prasinovirus. OtV-1 infects the unicellular marine green alga O. tauri, the smallest known free-living eukaryote. Here we present the 191 761 base pair genome sequence of OtV-1, which has 232 putative protein-encoding and 4 tRNA-encoding genes. Approximately 31% of the viral gene products exhibit a similarity to proteins of known functions in public databases. These include a variety of unexpected genes, for example, a PhoH-like protein, a N-myristoyltransferase, a 3-dehydroquinate synthase, a number of glycosyltransferases and methyltransferases, a prolyl 4-hydroxylase, 6-phosphofructokinase and a total of 8 capsid proteins. A total of 11 predicted genes share homology with genes found in the Ostreococcus host genome. In addition, an intein was identified in the DNA polymerase gene of OtV-1. This is the first report of an intein in the genome of a virus that infects O. tauri. Fifteen core genes common to nuclear-cytoplasmic large dsDNA virus (NCLDV) genomes were identified in the OtV-1 genome. This new sequence data may help to redefine the classification of the core genes of these viruses and shed new light on their evolutionary history.
| Item Type: | Journal Item | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QR Microbiology | ||||
| Divisions: | Faculty of Science > Life Sciences (2010- ) > Biological Sciences ( -2010) | ||||
| Journal or Publication Title: | Environmental Microbiology | ||||
| Publisher: | Blackwell | ||||
| ISSN: | 1462-2912 | ||||
| Official Date: | November 2009 | ||||
| Dates: |
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| Volume: | Vol.11 | ||||
| Number: | No.11 | ||||
| Number of Pages: | 19 | ||||
| Page Range: | pp. 2821-2839 | ||||
| DOI: | 10.1111/j.1462-2920.2009.01991.x | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | National Science Foundation, Alfred P. Sloan Foundation, Genome Institute of Singapore (GIS), NHGRI | ||||
| Grant number: | MCB-0701984, BR-4772, R01 HG004456-01, R01HG003521-01 |
Data sourced from Thomson Reuters' Web of Knowledge
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