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Euprosterna elaeasa virus genome sequence and evolution of the Tetraviridae family: Emergence of bipartite genomes and conservation of the VPg signal with the dsRNA Birnaviridae family

  1. Author:
    Zeddam, J. L.
    Gordon, K. H. J.
    Lauber, C.
    Alves, C. A. F.
    Luke, B. T.
    Hanzlik, T. N.
    Ward, V. K.
    Gorbalenya, A. E.

  2. Author Address

    [Lauber, Chris; Gorbalenya, Alexander E.] Leiden Univ, Med Ctr, Ctr Infect Dis, Mol Virol Lab,Dept Med Microbiol, NL-2300 RC Leiden, Netherlands. [Zeddam, Jean-Louis] CNRS, IRD, Lab Evolut Genomes & Speciat, UR 072,UPR 9034, F-91198 Gif Sur Yvette, France. [Zeddam, Jean-Louis] Univ Paris 11, F-91405 Orsay, France. [Gordon, Karl H. J.; Hanzlik, Terry N.] CSIRO Entomol, Canberra, ACT 2601, Australia. [Alves, Cristiano A. Felipe; Ward, Vernon K.] Univ Otago, Sch Med Sci, Dept Microbiol & Immunol, Dunedin 9054, New Zealand. [Luke, Brian T.] NCI, Adv Biomed Comp Ctr, Sci Applicat Int Corp, Frederick, MD 21702 USA.;Gorbalenya, AE, Leiden Univ, Med Ctr, Ctr Infect Dis, Mol Virol Lab,Dept Med Microbiol, Postzone E4-P,POB 9600, NL-2300 RC Leiden, Netherlands.;A.E.Gorbalenya@lumc.nl
    1. Year: 2010
    2. Date: Feb
  2. Journal: Virology
    1. 397
    2. 1
    3. Pages: 145-154
  4. Type of Article: Article
  5. ISSN: 0042-6822
  1. Abstract:

    The Tetraviridae is a family of non-enveloped positive-stranded RNA insect viruses that is defined by the T=4 symmetry of virions. We report the complete Euprostema elaeasa virus (EeV) genome sequence of 5698 nt with no poly(A) tail and two overlapping open reading frames, encoding the replicase and capsid precursor, with similar to 67% amino acid identity to Thosea asigna virus (TaV). The N-terminally positioned 17 kDa protein is released from the capsid precursor by a NPGP motif EeV has 40 nm non-enveloped isometric particles composed of 58 and 7 kDa proteins. The 3'-end of TaV/EeV is predicted to form a conserved pseudoknot. Replicases of TaV and EeV include a newly delineated VPg signal mediating the protein priming of RNA synthesis in dsRNA Birnaviridae. Results of rooted phylogenetic analysis of replicase and capsid proteins are presented to implicate recombination between monopartite tetraviruses, involving autonomization of a sgRNA, in the emergence of bipartite tetraviruses. They are also used to revise the Tetraviridae taxonomy. (C) 2009 Elsevier Inc. All rights reserved.

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External Sources

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  2. DOI: 10.1016/j.virol.2009.10.042
  3. View record in Web of Science®
  4. WOS: 000274132700018

Library Notes

  1. Fiscal Year: FY2009-2010
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