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    Constituents of SH1, a novel lipid-containing virus infecting the halophilic euryarchaeon Haloarcula hispanica.

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    Author
    Bamford, DH; Ravantti, JJ; Rönnholm, G; Laurinavicius, S; Kukkaro, P; Dyall-Smith, M; Somerharju, P; Kalkkinen, N; Bamford, JKH
    Date
    2005-07
    Source Title
    J Virol
    Publisher
    American Society for Microbiology
    University of Melbourne Author/s
    Dyall-Smith, Michael
    Affiliation
    Microbiology And Immunology
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Bamford, D. H., Ravantti, J. J., Rönnholm, G., Laurinavicius, S., Kukkaro, P., Dyall-Smith, M., Somerharju, P., Kalkkinen, N. & Bamford, J. K. H. (2005). Constituents of SH1, a novel lipid-containing virus infecting the halophilic euryarchaeon Haloarcula hispanica.. J Virol, 79 (14), pp.9097-9107. https://doi.org/10.1128/JVI.79.14.9097-9107.2005.
    Access Status
    Access this item via the Open Access location
    URI
    http://hdl.handle.net/11343/26315
    DOI
    10.1128/JVI.79.14.9097-9107.2005
    Open Access at PMC
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1168735
    Description

    C1 - Journal Articles Refereed

    Abstract
    Recent studies have indicated that a number of bacterial and eukaryotic viruses that share a common architectural principle are related, leading to the proposal of an early common ancestor. A prediction of this model would be the discovery of similar viruses that infect archaeal hosts. Our main interest lies in icosahedral double-stranded DNA (dsDNA) viruses with an internal membrane, and we now extend our studies to include viruses infecting archaeal hosts. While the number of sequenced archaeal viruses is increasing, very little sequence similarity has been detected between bacterial and eukaryotic viruses. In this investigation we rigorously show that SH1, an icosahedral dsDNA virus infecting Haloarcula hispanica, possesses lipid structural components that are selectively acquired from the host pool. We also determined the sequence of the 31-kb SH1 genome and positively identified genes for 11 structural proteins, with putative identification of three additional proteins. The SH1 genome is unique and, except for a few open reading frames, shows no detectable similarity to other published sequences, but the overall structure of the SH1 virion and its linear genome with inverted terminal repeats is reminiscent of lipid-containing dsDNA bacteriophages like PRD1.
    Keywords
    Archaebacteriology ; Biological Sciences

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