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Polydnavirus particle proteins with similarities to molecular chaperones, heat-shock protein 70 and calreticulin

Department of Applied and Molecular Ecology, Waite Campus, The University of Adelaide, Glen Osmond, South Australia 5064, Australia

Correspondence
Sassan Asgari
sassan.asgari{at}adelaide.edu.au

Multipartite nucleic acid-containing virus-like particles, known as polydnaviruses, are special structures produced by female parasitoid wasps to deliver wasp components into the body of their host at oviposition. The particles confer protection for the developing parasitoid by passive and active means. Although several genes expressed from the circular DNA of these particles have been identified from various host–parasitoid systems, there is not much known about the structural proteins of these particles. Here we report on two genes encoding Cotesia rubecula particle proteins with similarities to molecular chaperones, calreticulin and heat-shock protein 70.

The GenBank accession numbers for the sequences reported in this paper are AY150370 for CrCRT and AY150371 for CrHs70.